SERVICE MANUAL REVISION 0 JULY 1996 FY8-13E8-000 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
IMPORTANT THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON, INC., JAPAN. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER. ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY. COPYRIGHT © 1996 CANON INC.
INTRODUCTION This Service Manual provides basic facts and figures needed to service the plain paper copier NP6085 in the field. The NP6085 is designed to enable automated copying work and may be configured with the following system components: 1. Stapler Sorter-E2 2. RDF-D1 3. Computer Form Feeder-A2 (C.F.F.) For descriptions on the RDF-D1 and the Stapler Sorter-E2, see their respective service manuals. This manual covers the NP6085 and the C.F.F.
System Configuration The NP6085 is designed to accommodate the following accessory: C.F.F.-A2 (Computer Form Feeder)* Feeds continuous paper (computer forms) automatically and continuously on a page basis. RDF-D1 Feeds a stack of up to 100 originals to the copyboard for copying. Control Card V* Provides an efficient means of controlling the volume of copying work. Stapler Sorter-E2 Sorts and groups up to 20 sets of copies automatically.
CONTENTS CHAPTER 1 GENERAL INTRODUCTION I. II. III. IV. FEATURES ............................................1-1 SPECIFICATIONS .................................1-2 NAMES OF PARTS ...............................1-9 OPERATION ........................................1-13 V. VI. WARNINGS AND ACTIONS TO TAKE ..............................................1-27 ROUTINE WORK BY THE USER .......1-35 CHAPTER 2 COPYING PROCESSES I. IMAGE FORMATION .............................2-1 II. AUXILIARY PROCESSES........
VI. VII. VIII. D. Pre-Transfer Charging Assembly....4-71 E. Transfer/Separation Charging Assembly ........................................4-71 F. Charging Wire.................................4-72 DEVELOPING ASSEMBLY .................4-76 A. Developing Assembly .....................4-76 B. Hopper Assembly ...........................4-79 DRUM CLEANING ASSEMBLY...........4-80 A. Drum Cleaner .................................4-80 B. Separation Claw Drive Assembly ...4-82 C. Waste Toner Feeding Assembly ....
CHAPTER 1 GENERAL INTRODUCTION I. II. III. IV. FEATURES ............................................1-1 SPECIFICATIONS .................................1-2 NAMES OF PARTS ...............................1-9 OPERATION ........................................1-13 COPYRIGHT © 1996 CANON INC. V. VI. WARNINGS AND ACTIONS TO TAKE ..............................................1-27 ROUTINE WORK BY THE USER .......1-35 CANON NP6085 REV.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
1. GENERAL INTRODUCTION I. FEATURES 1. Generates 90 copies per minute (in stream reading mode) and provides a large-capacity source of paper (6,100 sheets). • • • It generates as many as 90 copies every minute (A4/LTR). It is designed as a front loading type, enabling efficient use of office space. It accommodates 1,000 sheets of copy paper in its front upper and lower trays, 4,000 sheets in its paper deck, and 100 sheets in its multifeeder. 2. Accepts continuous paper (when equipped with the optional C.
1. GENERAL INTRODUCTION II. SPECIFICATIONS A. NP6085 1. Type Body Console Copyboard Fixed Light source Halogen lamp (100V model, 285 W; 208/ 220/ 240V model, 330 W) Lens Zoom lens Photosensitive drum Amorphous silicon 2. System Copying Indirect static transfer Charging Corona Exposure Slit (moving light source) Copy density adjustment Automatic or manual Development Dry (toner projection) Pick-up Automatic 2 front trays, paper deck Pick-up Manual Multifeeder [10 mm (0.
1. GENERAL INTRODUCTION 3. Performance Type of original Sheet, book, 3-D object (2 kg or 4.4 lb max.) Maximum size of original A3/ 11" x 17" Copying ratio Direct, 4R3E (North America), 2R2E (Europe), 4R4E (Others) (Table 1-1), zoom (50% to 200%) Wait time 6 min or less (at 20¡C / 68ûF) First copy 3.1 sec (A4/ LTR direct, non-AE, paper deck) Continuous copying 999 copies max. Copy size A3/ 11" x 17" max.; B5/ STMTR min.
1. GENERAL INTRODUCTION 4. Others Operating Temperature 7.5˚ to 32.5˚C environment Humidify 5% to 85% RH Atmospheric pressure 810.60 hPa to 1013.25 hPa (0.8 to 1.0 atm) Serial number Power supply 100 V 50/60 Hz LEU xxxxx 208 V 60 Hz NFD xxxxx 230 V 50 Hz PBU xxxxx 230 V 50 Hz RAV xxxxx 230 V 50 Hz SAL xxxxx 230 V 50 Hz TAM xxxxx 230 V 50 Hz UBR xxxxx Power Maximum 2.0 kW or less consumption Standby 0.295 kWh (reference only) Continuous copying 1.
1. GENERAL INTRODUCTION Reproduction ratio Direct 1 : 1 (±0.6%) Size Copy paper size Copies/min A3 (297 X 420 mm) A3 47 A4 (210 X 297 mm) A4 85 (90) B4 (257 X 364 mm) B4 54 B5 (182 X 257 mm) B5 85 A4R (297 X 210 mm) A4R 61 B5R (257 X 182 mm) B5R 67 I 1:0.500 (±1.0%) --- --- --- II 1:0.707 (±1.0%) A3 ➝ A4 A4R 61 B4 ➝ B5 B5R 67 Reduce III 1:0.816 (±1.0%) B4 ➝ A4 A4R 61 IV 1:0.865 (±1.0%) A3 ➝ B4 B4 54 A4 ➝ B5 B5 85 I 1:2.000 (±1.0%) --- --- --- II 1:1.
1. GENERAL INTRODUCTION Reproduction ratio Size Copy paper size Copies/min LTR 83 (90) 11" X 17" 46 LGL 55 LTRR (8 1/ 2 " X 11") LTRR 62 (5 1/ 2 " STMTR 67 LTR (8 1/ 2 " X 11") 11" X 17" Direct 1 : 1 (0.06%) LGL (8 1/ 2 " STMTR Reduce Enlarge X 14") X 8 1/ 2") I 50.0% (± 1.0%) 11" X 17" ➝ STMT STMTR 61 II 64.7% (± 1.0%) 11" X 17" ➝ LTRR LTRR 62 III 73.3% (± 1.0%) 11" X 17" ➝ LGL LGL 55 11" X 15" ➝ LTR LTRR 62 I 200.0% (± 1.
1. GENERAL INTRODUCTION B. Computer Form Feeder-A2 Item Specifications Original pick-up Face down, automatic pick-up delivery (set with first page first) Original reading Fixed scanner, stream reading by original tractor Light source Halogen lamp (100V model, 80 V, 220 W) Remarks Halogen lamp (200V model, 175 V, 250 W) Type of original 1P computer form * • 50 to 80 g/m2 Size of original Breadthwise: 203.2 to 381.0 mm (8 to 15 in) Lengthwise: 203.2 to 304.
1. GENERAL INTRODUCTION ■ Auto Paper Selection The width is detected by the position of the tractor set to the width of continuous paper. The length in feeding direction is detected by the number of holes per page entered on the copier’s control panel. Both dimensions are used to identify the size of the original, thereby enabling automatic selection of copy paper. If ‘width of original/lengthwise dimension’ > 1, A4 (LTR) is selected. If ‘width of original/lengthwise dimension’ < 1, A4R (LTRR) is selected.
1. GENERAL INTRODUCTION III. NAMES OF PARTS A. External View q w e y u q w e r Stapler Sorter-E2 RDF-D1 Multifeeder Paper deck t r t Front right door y Front tray u Front left door Figure 1-1 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-9 Download Service Manual and Resetter Printer at http://printer1.blogspot.
1. GENERAL INTRODUCTION o q w e r t Control panel Copyboard glass Power switch Toner supply cover Multifeeder e r w q i u y u i o t y Paper deck Jam indicator Duplexing unit Front tray Figure 1-2 1-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
1. GENERAL INTRODUCTION B. Cross Section 1. Cross Section of the Copier q @8 q w e r t y u i o !0 !1 !2 w e r t y u i o !0 !1 !2 !3 @7 @6 @9 @5 @4 @3 @2 @1 #0 @0 !9 No. 3 mirror No. 2 mirror Scanning lamp No. 1 mirror Copyboard glass Zoom lens Photosensitive drum Drum cleaning assembly Pre-exposure assembly Primary charging assembly No.
1. GENERAL INTRODUCTION 2. Cross Section of the Computer Form Feeder-A2 (C.F.F.) q w e rt y u i o !0 C.F.F. Copier !1 q w e r t y Original stacking tray Delivery roller C.F.F. controller PCB White plate Platen glass Dust-proofing glass !2 u i o !0 !1 !2 C.F.F. lamp Heat exhaust fan Tractor C.F.F. cover No. 1, No. 2/3 mirror mount (copier) C.F.F. mirror unit Figure 1-4 1-12 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
1. GENERAL INTRODUCTION IV. OPERATION A. Control Panel q w e r t Energy Saver Reset 1 2 3 4 5 6 7 8 ID 0 ON/OFF Stop Guide Start Additional Function 9 Clear Interrupt C !1 !0 o i u y Figure 1-5 q Touch panel display w Guide key (Copy Density key) e Reset key Standard mode • Copy count at 1 • Direct • Auto paper selection • One-sided to two-sided • Non AE COPYRIGHT © 1996 CANON INC. r Numeric keypad t Energy Saver key • ON when selected.
1. GENERAL INTRODUCTION B. Basic Operation 1) Turn ON the power switch. q The Wait indicator turns ON in green. w Normally, the wait time is 6 min (at ambient temperature of 20 ÞC). Reference: Auto start mode may be selected during the wait period. (See p. 1-15.) 2) Open the RDF, place the original face down, and close the RDF. Or, set the original in the RDF. 3) Select the appropriate reproduction ratio. q Reduce, Direct, Enlarge Key Press it to make a default size copy from a default size original.
1. GENERAL INTRODUCTION r When the selected tray runs out of paper during continuous copying, the copier will indicate the message ‘Add Paper’ on the touch panel display and stop operation. If this happens, supply copy paper, and press the Copy Start key so that the remaining number of copies will be made automatically. However, this does not apply if ‘Drawer Eligibility ON’ is selected in user mode. (See p. 1-24.
1. GENERAL INTRODUCTION D. Copying from Continuous Paper Originals (computer forms) 3) Holding the top of the original stacking tray, set it as if to pull it up. If the copier is equipped with the Computer Form Feeder-A2 (C.F.F. hereafter), you may automatically feed continuous paper (e.g., computer forms) for continuous copying. Note: You cannot use the multifeeder if you are making copies using the C.F.F. 1. Placing the Continuous Paper 1) Lift the copyboard cover until it is upright, and set the C.F.
1. GENERAL INTRODUCTION 6) Open the tractor covers at the front and at the rear, and move the tractor at the front to suit the width of the continuous paper. 8) Close the tractor covers on both sides securely, fix the continuous paper in place, and shift the tractor lever at the front to the left to lock the tractor. Locking lever Figure 1-11 7) Place the continuous paper with the side you want to copy facing downward and aligning the holes.
1. GENERAL INTRODUCTION 10)Close the C.F.F. cover, and set the sub guide. 3) Set the appropriate copying mode, and press the Copy Start so that the continuous paper (original) will be fed for copying. Note: • The copy count must be ‘1’. • A4 or A4R will be selected automatically as copy paper. • Take care not to move the C.F.F. once copying has started. Figure 1-15 2.
1. GENERAL INTRODUCTION 3. After Making Copies 1) Remove the continuous paper (original) from the original delivery tray; shift down the sub guide, and put in the original delivery tray. 2) Press the C.F.F. releasing button, and put the C.F.F. back into its original position; then, close the copyboard cover. E. Energy Saver Mode and Auto Power-Off 1.
1. GENERAL INTRODUCTION F. Margin Mode G. Frame Erasing You can use the Margin key to create a margin along the left/right or the top/bottom of copies for binding. 1. Original Frame Erasing Reference: In this mode, the image of the original is shifted left/right or top/bottom, thereby creating a margin on the left/right or the top/bottom of copies. You can use the Original Frame Erase key to erase the frame-like image of an original on a copy.
1. GENERAL INTRODUCTION H. Making Two-Sided Copies 3. Binding Erasing You can use the Binding Erase key to erase the image of holes punched in the original. In this mode, a width of about 18 mm (may be varied between 1 and 20 mm) is created along the trailing edge of copies. You can use the Two-Sided Copy key to make the following types of copies: • from one-sided original to two-sided copy • from two-sided original to two-sided copy • from two-sided original to one-sided copy 20mm I.
1. GENERAL INTRODUCTION L. Interrupting Ongoing Copying Operation You can interrupt continuous copying to make copies of a different original. 1) Press the Interrupt key to select interrupt mode. q You can make as may as 999 copies. w You cannot use auto paper selection. e You may use the RDF for manual feeding. r You cannot use this mode if you are using the C.F.F. 2) To de-select interrupt mode, press the Interrupt key once again. M.
1. GENERAL INTRODUCTION S. Face-Down Output Mode 3. Keeping Track of Counts In this mode, the copies will be delivered so that the side with the copied image will be the back. By making use of this mode, you can collate the pages even when you initiated copying starting with the first page of the originals. You can have copy counts, i.e., the number of copies made so far, displayed by ID number. 1) Press ✻ , ID , Stop , and ✻ . 2) Select ‘count control’ on the touch panel display, and press the OK key.
1. GENERAL INTRODUCTION V. Additional Functions Mode 1. Types of Additional Function The NP6085 has the following four types of additional functions, for which the user may freely select appropriate settings: 1. Standard settings 2. Custom settings 3. Timer settings 4. Adjustment/cleaning a. Standard Settings Item Description Standard key Set up a Standard key on the standard screen and store an appropriate mode under it. Operation/remarks 2 max b.
1. GENERAL INTRODUCTION Item Description Operation/remarks Stack bypass size setting ON/OFF Use it to enable the following for manual copying mode: ON: So that the Paper Size Input Screen will appear. OFF: So that the Paper Size Input Screen will not appear. Factory default: OFF Audible tones ON/OFF Use it to enable the following for input, warning, standby, and copy end sounds: ON: So that the buzzer will sound. OFF: So that the buzzer will not sound.
1. GENERAL INTRODUCTION c. Timer Settings Item Description Operation/remarks Auto clear time Use it to set the auto clear time between 10 sec and 9 min in 1-sec increments. Setting it to 0 min disables the auto clear function. Factory default: 2 min Auto power-off time Use it to set the auto power-off time between 10 min and 2 hr as follows: from 10 min to 1 hr, in 10-min increments from 1 hr to 2 hr, in 1-hr increments You may disable the auto power-off function in service mode.
1. GENERAL INTRODUCTION V. WARNINGS AND ACTIONS TO TAKE A. Jam Indicator 1. Jams in the Delivery Assembly 1) Release the delivery assembly. 2) Turn the fixing assembly knob in the direction of the arrow to forward the jam. When a jam occurs, the copier indicates the Jam message on the control panel while identifying the location of the jam as in Figure 1-25. Locate the jam, and perform the steps that follow. (For a jam in the sorter or the RDF, see their respective Service Manuals.
1. GENERAL INTRODUCTION 2. Jams in the Fixing Assembly 3. Jams in the Feeding Assembly 1) Turn the fixing assembly knob, and remove the jam. 1) Hold the grip, and slide out the duplexing unit. 2) Remove the paper trapped in the feeding assembly. Note: The copier is designed so that the fixing assembly cannot be slid out if paper is straddling over the fixing assembly and the delivery assembly. This is to prevent paper from tearing. 2) Hold the grip, and slide out the fixing assembly to the front.
1. GENERAL INTRODUCTION 5. Jams in the Registration Roller Assembly 7. Jams on the Front Tray 1) Turn the knob on the registration roller, and remove the jam. 2) Hold the grip, and slide out the duplexing unit. 3) Push down the lever of the transfer guide, and remove the jam. 1) Press the front tray open button. 2) Slide out the front tray. 3) Remove the jam. Lever Figure 1-33 Figure 1-31 4) Push in the front tray. 4) Set the transfer guide. 5) Push in the duplexing unit to set it in the copier.
1. GENERAL INTRODUCTION 9. Jam in the Multifeeder 1) Open the multifeeder cover, and remove the jam while taking care not to tear it. 2) Open the tractor cover, and place the continuous paper (original) once again. At this time, check the original and the last copy delivered to find out which original page to resume copying with; then, align the leading edge perforation of the page with the orange index. Tractor cover Figure 1-35 10. Jams in the C.F.F.
1. GENERAL INTRODUCTION 11. Continuous Paper Jam in the C.F.F. 12. Removing the C.F.F. Cover Perform the following if the continuous paper jams on the original stacking tray when the C.F.F. is used: If the continuous paper jams or moves awry in the C.F.F., perform the following to avoid having to separate the pages: 1) Remove the C.F.F. cover as follows: q Open the C.F.F. cover. w Slide the tab on the front inside of the C.F.F.
1. GENERAL INTRODUCTION B. Add Paper Indicator 3) Place a stack of copy paper butting it against the side of the tray, and close the tray. The copier will indicate the Add Paper message on its touch panel display when the paper deck, front tray, or multifeeder runs out of paper. Reference: The copier will also indicate the Add Paper message in the following conditions: • The front tray is not fully set in the copier. • The right door of the paper deck is not closed fully. 1.
1. GENERAL INTRODUCTION C. Add Toner Indicator 3) Slide the shutter of the toner bottle to the front until it stops. The copier will indicate the Add Toner message on its touch panel display when the hopper or the developing assembly starts to run out of toner. 1. Supplying Toner You must shake the toner bottle several times before using it. 1) Open the toner supply cover, and fit the boss on the toner bottle into the groove of the toner supply mouth; push in the bottle until a click is heard.
1. GENERAL INTRODUCTION 5) Push the slide lid to the rear until it stops. (A click will be heard, and the toner bottle will be released free.) Figure 1-48 6) Pull up the toner bottle to remove. Figure 1-49 7) Close the toner supply cover. D. Handling the Toner Bottle Instruct the user to dispose of any empty toner bottle as nonflamable material. Caution: Do not dispose of the toner bottle into fire. It may explode. 1-34 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
1. GENERAL INTRODUCTION VI. ROUTINE WORK BY THE USER Advise the user to clean the following at least once a week: 1) Copyboard Glass Wipe it with a moist cloth, and dry wipe it. 2) Copyboard Cover/RDF Feeding Belt Wipe it with a solution of mild detergent, and dry wipe it. 3) Charging Wire Clean it by executing the wire cleaning function in user mode. 4) RDF Separation Belt Clean it by executing the feeder cleaning function in user mode. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
CHAPTER 2 COPYING PROCESSES I. IMAGE FORMATION .............................2-1 COPYRIGHT © 1996 CANON INC. II. AUXILIARY PROCESSES.....................2-9 CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
2. COPYING PROCESSES I. IMAGE FORMATION A.
2. COPYING PROCESSES The NP6085 generates images in the following nine steps. (The various auto control mechanisms will be discussed later.) Step 1 Pre-exposure Step 2 Primary charging (positive DC) Step 3 Image exposure Step Step Step Step Step Step 4 5 6 7 8 9 Development (AC + negative DC) Pre-transfer charging (AC + negative DC) Transfer (positive DC) Separation (AC + positive DC) Fixing Drum cleaning Latent image formation block 3. Image exposure 2. Primary charging 1.
2. COPYING PROCESSES B. Latent Image Formation Block This block consists of three steps at the end of which positive charges are left in the areas of the drum corresponding to the black areas of the original by removing the positive charges from those areas corresponding to the white areas of the original. The NP6085 uses an automatic surface potential control mechanism to ensure a specific potential for the dark and light areas of static images. C.
2. COPYING PROCESSES D. Primary Charging (step 2) Primary charging Photosensitive drum E. Image Exposure (step 3) Optical image Dark area Light area Figure 2-107 Figure 2-106 The surface of the drum is evenly charged to positive potential by the primary charging assembly to ensure primary potential. The surface potential of the charged drum is determined by the potential of the grid; therefore, the grid is grounded through a varistor to ensure a specific surface potential.
2. COPYING PROCESSES A concentrated magnetic field occurs from the magnet to the tip of the blade, attracting the magnetic toner. Once inside the concentrated magnetic field, the toner becomes virtually immobile because of its strong bond to the blade, ensuring a thin, uniform layer of toner on the cylinder.
2. COPYING PROCESSES G. Pre-Transfer Charging (step 5) H. Transfer (step 6) Photosensitive drum Photosensitive drum Pre-transfer charging assembly Copy paper Transfer/separation charging assembly Figure 2-111 Figure 2-112 The toner on the surface of the drum is given AC corona charges with a DC bias to increase its charging, thereby improving transfer efficiency while at the same time facilitating paper separation.
2. COPYING PROCESSES I. Separation (step 7) J. Fixing (step 8) Photosensitive drum Cleaning belt Copy paper Oil application Cleaning Halogen heaters Transfer/separation charging assembly Upper roller Copy paper Lower roller Figure 2-113 Figure 2-114 Copy paper is charged to a positive potential by the transfer charging assembly and is drawn to the surface of the photosensitive drum by the work of static electricity.
2. COPYING PROCESSES K. Pre-Cleaning Exposure (step 9) L. Drum Cleaning (step 10) Cleaning blade Brush Waste toner feeding screw Magnet roller Pre-cleaning exposure LED Figure 2-115 Figure 2-116 Pre-cleaning exposure is executed before cleaning the drum, thereby removing the residual charges from the surface of the drum to ensure uniform cleaning. This step starts as soon as the pre-exposure LED turns on.
2. COPYING PROCESSES II. AUXILIARY PROCESSES B. Separation Claw A. Roller Electrode Developing assembly Photosensitive drum Roller electrode Separation claw Figure 2-201 Figure 2-202 A DC bias (negative component) is applied to the roller electrode to collect any excess toner that did not move to the surface of the drum by the roller electrode, limiting soiling of the pre-transfer charging assembly and the transfer charging assembly.
2. COPYING PROCESSES C. Blank Exposure Lamp The blank exposure lamp turns ON while the drum is rotating except when an original is being exposed (scanning moving forward), thereby removing surface charges of the non-image areas to prevent adhesion of unwanted toner on the surface of the photosensitive drum.
CHAPTER 3 OPERATIONS AND TIMING ▲ In outline diagrams, represents mechanical drive paths, and indicates electrical signal paths. Signals in digital circuits are identified as ‘1’ for High and ‘0’ for Low. The voltage of signals, however, depends on the circuit. Nearly all operations of the product are controlled by a microprocessor; the internal workings of the processor are not relevant to the service person’s work and, therefore, are left out of the discussions.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING I. BASIC OPERATION A. Functional Construction The NP6085 can be divided into four functional blocks: pick-up/feeding system, exposure system, image formation system, and control system. Control system Control panel Copyboard Control circuit Fixing assembly Feeding assembly Delivery control assembly No.
3. OPERATIONS AND TIMING B. Outline of Electrical Circuitry The NP6085’s major electrical mechanisms are controlled by the microprocessors on its DC controller PCB The two microprocessors are as follows and serve the functions given: 1 Q158 (master) • Controls copying sequence. • Controls high voltage. • Controls fixing temperature. • Controls scanner drive. • Controls pick-up/feeding operations. 2 Q115 (slave) • Controls the lens motor (X, Y). • Controls the blank exposure LEDs.
3.
3. OPERATIONS AND TIMING C. Inputs to the DC Controller Inputs to the DC Controller (1/7) DC controller PCB 12VU Lens X home position sensor Q2 J103 A13 A14 LXHP A15 When the lens is at X direction home position, '1'. (The light-blocking plate is at Q2.) 12VU A11 A12 Lens Y home position sensor Q3 Scanner original leading edge 1 sensor Scanner home position sensor Sensor C.F.F.
3. OPERATIONS AND TIMING Inputs to the DC Controller (2/7) DC controller PCB J125 B10 No. 2 feeding assembly inlet sensor B9 Q12 B8 5VR PDP4 J117 5VR A7 A8 Paper reversal sensor Q13 PDP5 A9 A5 Q14 When Q13 has detected copy paper, '1'. (The light-blocking plate is at Q13.) 5VR A4 Paper reversing assembly outlet sensor When Q12 has detected copy paper, '1'. (The light-blocking plate is at Q12.0) PDP6 A6 When Q14 has detected copy paper, '1'. (The light-blocking plate is at Q14.
3. OPERATIONS AND TIMING Inputs to the DC Controller (3/7) DC controller PCB J120 A6 Re-pick up sensor Q26 A8 Duplexing unit paper sensor Q27 Paper jogging guide home position sensor Q28 PDP11 A5 A9 A11 A10 When Q26 has detected copy paper, '1'. (The light-blocking plate is at Q26.) PDP12 When copy paper is in the duplexing unit, '1'. (The light-blocking plate is at Q27.) 5VR When the paper jogging guide plate is at home position, '1'. (The light-blocking plate is at Q28.
3. OPERATIONS AND TIMING Inputs to the DC Controller (4/7) DC controller PCB J112 Paper path 0 paper sensor Paper path 1 paper sensor A6 A5 Q46 A4 Q47 J111 A6 A5 A4 A3 Upper front tray pick-up sensor A2 Q48 5VR PS46D When Q46 has detected copy paper, '1'. (The light-blocking plate is at Q46.) 5VR PS47D When Q47 has detected copy paper, '1'. (The light-blocking plate is at Q47.) 5VR UFPS A1 When Q48 has detected copy paper, '1'. (The light-blocking plate is at Q48.
3. OPERATIONS AND TIMING Inputs to the DC Controller (5/7) DC controller PCB SW2 Delivery door switch SW3 Front door switch J104 B8 B7 J103 B14 B15 SW4 Primary charging wire cleaner rear detecting switch SW5 Oscillation signal (DIGIT) DDO Oscillation signal (DIGIT) FDO J103 B6 B5 SW6 When the front door is open, '0. PCRP When the primary charging wire cleaner is at the rear, '0'. PCHP When the primary charging wire cleaner is at the front, '0'.
3. OPERATIONS AND TIMING Inputs to the DC Controller (6/7) SW18 Lower front tray lifter upper limit detecting switch DC controller PCB J115 B14 LTLUD When SW18 has detected the lifter, '0'. LTLLD When SW19 has detected the lifter, '0'. WTFL When the waste toner feeding screw has locked and SW20 has been pressed, '0'.
3. OPERATIONS AND TIMING Inputs to the DC Controller (7/7) DC controller PCB J105 B8 SWLED2 B7 Lower front tray open switch LTOP 12VU B6 B5 SWLED1 LTLD When '0', the LED turns ON. UTOP When '0', the front tray is open. B4 B3 Upper front tray open switch 12VU B2 B1 UTLD J121 B7 B8 Original size detection 1 DS1 Original size detection 2 Original size detection 3 Hopper toner level sensor B9 B10 DSZ2 When an original is present, '1'. DSZ1 When an original is present, '1'.
3. OPERATIONS AND TIMING D. Outputs from the DC Controller Outputs from the DC Controller (1/8) <208V/220V/240V> CB1 LF1 SW34 Drum heater switch SW48 Door switch Drum heater Drum heater control PCB DC controller PCB J2013-2 J2011-7 J2013-1 8 2 J117-B1 SSR 1 B2 MHOND See p. 3-117. J2014-1 3 TS1Thermal switch 2 H1Fixing heater J116-3 J2098-2 4 3 12VU FILS Lamp regulator J2011 4 J333-3 5 5 6 7 LA1Scanning lamp When the fixing assembly is set, '1'. J122 See p. 3-55.
3. OPERATIONS AND TIMING Outputs from the DC Controller (2/8) DC controller PCB HVT J724 J127 4 Pre-transfer charging assembly HVTAC Separation charging assembly 3 2 1 B9 J723 B8 HVPCT ACON 6 HVTDC B6 5 4 3 B5 J722 5 Roller electrode HVT-2 B4 4 3 2 1 Varies between 8 and 17 V to control the pre-transfer bias DC component. HVRMT When '1', the HVT circuit turns OFF. HVSCT Varies between 8 and 16 V to control the separation bias DC component.
3. OPERATIONS AND TIMING Outputs from the DC Controller (3/8) DC controller PCB J125 A12 Drum motor M1 Drum motor control PCB A13 A14 DMD DMFG DMFS } See p. 3-21. J124 Scanner motor M2 Scanner motor control PCB See p. 3-45. J123 Pick-up motor M16 Pick-up motor control PCB B6 B7 B8 PMD PMFG PMFS } See p. 3-21. J111 Fixing motor M17 Fixing motor control PCB B2 B4 FMD FMFS B1 FMPL } See p. 3-21. J125 B4 Cleaning belt drive solenoid SL1 24VU B5 CLBSD When '0', SL1 turns ON.
3. OPERATIONS AND TIMING Outputs from the DC Controller (4/8) DC controller PCB J117 B8 M size paper deflecting plate drive solenoid SL5 MDSD When '1', SL5 turns ON. LDSD When '1', SL6 turns ON. B7 B10 L size paper deflecting plate drive solenoid SL6 B9 J120 Re-pick up assembly releasing solenoid A2 SL8 A1 A4 Paper sub feeding roller DOWN solenoid SL10 A3 24VU DPSSD When '0', SL8 turns ON. 24VU DPISD When '0', SL10 turns ON.
3. OPERATIONS AND TIMING Outputs from the DC Controller (5/8) DC controller PCB J126 B6 Developing clutch CL1 B5 B8 Delivery assembly switchback CW rotation clutch CL2 B7 24VU DVLD SBFCD CL3 When '0', CL2 turns ON. 24VU B11 Delivery assembly switchback reversing clutch When '0', CL1 turns ON. 24VU B9 SBRCD When '0', CL3 turns ON.
3. OPERATIONS AND TIMING Outputs from the DC Controller (6/8) DC controller PCB J105 A5 Pre-transfer charging wire cleaning motor M7 A6 } See p. 3-79. } See p. 3-79. J118 B5 Transfer/separation charging wire cleaning motor Lens X motor M8 B6 M9 Lens Y motor J103 A6 A7 A8 A9 A10 LX-A LX-A LX-B LX-HOLD LX-B A1 A2 A3 A4 A5 LY-A LY-A LY-B LY-HOLD LY-B J120 B5 B4 B3 B2 B1 A A COM B B M10 Paper jogging guide motor M11 } } } See p. 3-31. See p. 3-31. See p. 3-111.
3. OPERATIONS AND TIMING Outputs from the DC Controller (7/8) DC controller PCB FM2 Fixing cooling fan 12VU J125- A10 FMDL2 12VU A11 FM3 Air exhaust fan J126- B3 When '1', FM2/3/4/6/13 rotates at low speed. 12VU B4 12VU FM4 Feeding fan J116- 1 2 FM14 Developing assembly heat exhaust fan 24VU FM6 Power supply cooling fan J111- B5 12VU FMDH2 24VU B6 When '1', FM2/3/4/6/13 rotates at high speed.
3. OPERATIONS AND TIMING Outputs from the DC Controller (8/8) DC controller PCB FM12 Fixing assembly heat exhaust fan J127 A13 FIXC When the fixing assembly is connected, '1'; rotates at 12 VU. A12 LA2 Buffer assembly internal lamp J123 A4 12VU A3 LA3 Front tray internal lamp LA2ON J112 A13 A14 When '0', the lamp turns ON. 12VU LA3ON When '0', the lamp turns ON. J105 Total copy counter CNT1 A2 A1 CNT2 A4 A3 24VU TCNTD When '0', the total copy counter operates.
3. OPERATIONS AND TIMING E. Inputs to and Outputs from the Paper Deck Driver Inputs to and Outputs from the Paper Deck Driver (1/1) Side tray drive PCB J501 B3 Paper deck lifter position sensor B2 Q17 5VR When the lifter has moved up the top face of the paper to s specific position or the lifter cam has pressed SW10, '0' SLTP B1 SW10 Paper deck lifter upper limit detection switch NC Paper deck paper absent sensor J501 B6 B5 Q18 When there is no copy paper in the paper deck, '1'.
3. OPERATIONS AND TIMING Inputs and Outputs between the Paper Deck Driver Assembly and the DC Controller J102 A6 Multifeeder paper sensor A5 Q29 DC controller PCB 5VR MFS A4 J112 A3 Paper deck pick-up sensor A2 Q35 5VR 4KPS A1 J102 A9 Multifeeder pick-up sensor A8 Q36 Multifeeder large size sensor A11 Q41 When Q36 has detected copy paper, '1'. (The light-blocking plate is at Q35) 5VR MFPS A7 J102 A12 When Q29 has detected copy paper, '1'.
3. OPERATIONS AND TIMING F. Drum Motor/Pick-Up Motor/ Fixing Motor Control Circuit Figure 3-120 is a block diagram showing the control circuit of each motor, and the circuits have the following functions for their respective motors: q Turns ON/OFF the motor. w Switches the speed of the motor. e Controls the motor to a specific speed. Each motor is a DC motor with a built-in clock pulse generator, generating clock pulses (DMCLK/PMCLK/FMCLK) according to the revolution of the motor.
3. OPERATIONS AND TIMING 2. Operation a. Turning ON and OFF the Motor When the motor drive signal ( DMD / PMD / FMD ) goes ‘0’, the phase comparator circuit and the frequency comparator circuit shown in Figure 3-120 generate control signals. These control signals from both circuits are added and sent to the motor drive circuit, thereby turning ON the motor drive circuit and rotating the motor.
3. OPERATIONS AND TIMING G. Basic Sequence of Operations 1.
3. OPERATIONS AND TIMING 2. Basic Sequence of Operations at Power-On (2/2) • Auto Start Selected The period between WMUP and LSTR is called the Wait period. Copying will start automatically at the end of the period if the Copy Start key is pressed during the period.
3. OPERATIONS AND TIMING Period Purpose Remarks WMUP (warm-up) From when the power switch is turned ON until the surface temperature of the upper fixing roller reaches 170˚C. Waits until the fixing assembly warms up. •.The primary/pre-trans- AINTR From the end of WMUP until the surface temperature of the upper fixing roller reaches 180˚C. Evens out the surface temperature of the fixing roller. •.
3. OPERATIONS AND TIMING 3.
3. OPERATIONS AND TIMING Period Purpose Remarks INTR (initial rotation) From when the Copy Start key is pressed until CNTR1 starts. Stabilizes the drum sensitivity in preparation for copying operation. The lens is moved. If the lens does not reach a specific position within a specific period of time, INTR is continued until the lens movement is completed. CNTR1 (control rotation 1) For about 5 sec from the end of INTR. Controls the drum surface potential VD.
3. OPERATIONS AND TIMING 4. Basic Sequence of Operations for Page Separation Copying For this reason, the density of the original in AE mode is measured at a point 120 mm from the leading edge of the original. Both originals on the left and the right are copied based on the measurement. In page separation mode, the original on the left of the copyboard is copied first (SCFW1) and then the original on the right of the copyboard is copied (SCFW2).
3. OPERATIONS AND TIMING Period Purpose Remarks •.The registration signal is generated, and the copy paper is moved to the transfer assembly. •.The pick-up signal is generated, and the next copy paper is picked up. SCFW1 (scanner forward 1; copying original on left) While the scanner is moving forward. •.The distance over which the scanner moves forward varies according to the copy paper size and the selected reproduction ratio.
3. OPERATIONS AND TIMING II. EXPOSURE SYSTEM B. Lens Drive System A. Varying the Reproduction Ratio 1. Outline of the Lens Drive System ■ Copyboard Cover in Use Lens position for S copy paper Y direction The reproduction ratio in the drum axial direction is varied by the lens drive system, and that in the drum peripheral direction is by the scanner system and the main drive system.
3. OPERATIONS AND TIMING 2. Moving the Lens 3. Lens Motor Control Circuit a. Moving the Lens in Y (vertical) Direction The lens X motor (M9) and the lens Y motor (M10) are 4-phase stepping motors. Since both motors are controlled in the same way, the lens X motor will be discussed herein. The lens X motor (M9) is controlled by the four motor drive signals (LX-A, LX-A , LX-B, LX-B ) generated by the DC controller PBC.
3. OPERATIONS AND TIMING When the lens X motor is at rest, the lens X motor hold signal (LX-HOLD) is generated and a voltage lower than the voltage used to rotate the lens is applied by way of applying brakes. 4. Moving the Lens a. At Power-On When the power switch is turned ON, the lens X motor (M9) rotates, and the lens keeps moving until the signal plate on the lens housing blocks the lens X home position sensor (Q2).
3. OPERATIONS AND TIMING b. Lens Movement and Copying Operation The microprocessor master and slave (Q115) retain the positions of the lens in relation to various combinations of different original sizes and copy sizes in memory. When a change is initiated in the selected reproduction ratio, it immediately sends drive pulses for the X motor (M9)/Y motor (M10), thereby changing the position of the lens (period II in Figure 3-205).
3. OPERATIONS AND TIMING C. Scanner Drive System However, brakes are applied as soon as the signal plate reaches the photointerrupter (Q4) and the scanner is stopped. (The photointerrupter Q5 is used to make sure that the scanner has stopped at home position.) If the RDF is used for stream reading, the scanner leading edge 2 sensor (Q38) is used to find out whether the No. 1 mirror mount of the scanner has reached a specific point.
3. OPERATIONS AND TIMING 2. C.F.F. Position The No. 1 through No. 3 mirrors are not used when making copies with the optional C.F.F. As such, the scanner is moved farther left than the normal home position, called the C.F.F. position. Standard white plate The C.F.F. position is detected by the scanner C.F.F. position sensor (Q6), and the scanner is fixed in the C.F.F. position after Q6 has recognized that the scanner has reached the position. (See Figure 3-208.) C.F.F.
3. OPERATIONS AND TIMING 3. Relationship between the Scanner Sensors and the Signals Scanner Scanner sensor Signal Description Forward Scanner home position sensor (Q5) SCHP Scanner original leading edge 1 sensor (Q4) SCDP1 Reverse • Scanner home position • Scanner motor stop moving • Registration clutch ON • Scanner forward distance reference • The brakes are applied to show down the scanner. Scanner original leading edge 2 sensor (Q38) SCDP2 Scanner C.F.F.
,, 3. OPERATIONS AND TIMING 4. Sequence of Scanner Movement The distance over which the scanner moves forward is determined by the microprocessor based on the selected copy size and the selected copying mode. The microprocessor computes the size of the original that can be copied on the selected copy paper based on the selected reproduction ratio to determine the distance over which the scanner is moved.
3. OPERATIONS AND TIMING , , 5.
3. OPERATIONS AND TIMING 6.
3. OPERATIONS AND TIMING b. Stream Reading with the RDF in Use (1 on 1) Originals 1 2 RDF 2 1 Copier Scanner r The 2nd original is moved over the scanner and is exposed. Then, the RDF generates the image leading edge signal for the 1st original. q The originals are set. 2 1 1 2 t The 1st original is moved over the scanner and is exposed. The 2nd original is discharged from the left. w The Copy Start key is turned ON. The 2nd original is picked up from the right.
3. OPERATIONS AND TIMING 7. Sequence of Scanner Movement with the RDF in Use (A4, 2 originals, 2 copies) Copy Start key ON SC SC INTR SCFW SC RV SCFW SCFW RV SCFW RV *1 Scanner home position signal (Q5) Scanner original leading edge 1 signal (Q4) Scanner original leading Copier edge 2 signal (Q38) Scanner motor (M2) Scanning lamp (LA1) Scanner locking solenoid(SL18) RDF Belt motor (M3) Image leading edge signal *2 *1 LSTR *2 *1 Scanner fixed in position. *2 Scanner moved. Figure 3-213 a.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
b. Combining Stream Reading and Normal Scanning (A4, 2 originals, multiple copies) Originals 1 2 1 1 Download Service Manual and Resetter Printer at http://printer1.blogspot.com RDF 2 2 2 1 Scanner q Originals are set. w The Copy Start key is pressed. The 2nd orignal is picked up. The scanner is moved to the center of the copyboard and is locked in position by the scanner locking support plate.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING 8. Scanner Motor Control Circuit d. Moving the Scanner in Reverse a. Outline When the scanner motor drive signal ( M2ON ) goes ‘0’ and the scanner forward signal (M2F/R) goes ‘0’, the drive circuit turns ON to rotate the scanner motor counterclockwise, thereby moving the scanner in reverse. e. Controlling the Speed of the Scanner Motor Figure 3-215 shows the circuit that controls the scanner motor, and the circuit has the following functions: 1 Turns ON/OFF the scanner motor.
3. OPERATIONS AND TIMING The rotation speed control circuit compares the scanner speed signal and the clock pulses (M2CLK) generated by the scanner motor and sends control signals to the motor drive circuit according to the difference. The motor drive circuit does not change the voltage applied to the motor but rather turns ON/OFF the power to the motor at short intervals (while keeping the voltage constant), thereby controlling the speed by varying the intervals.
3. OPERATIONS AND TIMING the copyboard glass. After detecting the presence/absence of an original when the copyboard is closed, the LEDs of these sensors emit light, and the light reflected by the original is detected by phototransistors for output to the DC controller. The DC controller in response identifies the size of the original as being either A3, B4,A4, or B5 (default sizes). D. Detecting the Size of Originals 1.
3. OPERATIONS AND TIMING 2. Operation The DC controller measures the output of the original size detection sensors at intervals of 0.2 sec for 15 sec after the copyboard cover sensor (Q89) turns ON or until the Copy Start key is pressed. If an original exists over an original sensor, the output of the detection circuit is of a specific value regardless of the angle of the RDF, since the original size sensor receives the light reflected by the original.
3. OPERATIONS AND TIMING 3.
3. OPERATIONS AND TIMING III. IMAGE FORMATION SYSTEM A. Controlling the Drum Surface Potential 1. Outline Changes in the latent images can significantly affect the quality of copy images. Such changes in the latent image in turn are usually caused by the following: 1 changes in the drum sensitivity. 2 changes in the charging volume of the primary charging assembly. 3 changes in the degree of exposure.
3. OPERATIONS AND TIMING 2. Control Method b. Controlling the Scanning Lamp Intensity Table 3-301 shows the number of measurements and corrections the NP6085 makes. To measure the light area potential (VL1), a reference ON voltage is applied to the scanning lamp. The scanning lamp exposes the standard white plate, and the reflected light is projected to the drum. The drum surface potential of the area exposed to light is measured by the potential sensor, and the result is sent to the DC controller PCB.
3. OPERATIONS AND TIMING c. Controlling the Developing Bias d. Controlling the Potential The light area potential (VL2) for the developing bias is based on the drum surface potential measured when the scanning lamp is turned ON based on the final intensity adjustment signal value occurring at time of VL1 control.
3. OPERATIONS AND TIMING 3. Potential Detecting Circuit Figure 3-303 is a block diagram of the potential detecting circuit. Charges corresponding to the drum surface potential are induced on the electrode inside the sensor and are turned into AC voltage by the opening/closing of the chopper and sent to the pre-amplifier circuit; the voltage is amplified by the pre-amplifier circuit and then sent to the filter/gain adjustment circuit on the surface potential measurement PCB.
3. OPERATIONS AND TIMING Signal from sensor Vx Sync signal +12V Sync clamp circuit output Figure 3-305 Surface Potential Lower Than Sensor Bias... The output of the sync clamp circuit is subjected to integration in the integration circuit and applied to the transformer after amplification.
3. OPERATIONS AND TIMING B. Controlling the Intensity of the Scanning Lamp 2. Operation a. Turning ON and OFF the Scanning Lamp 1. Outline Figure 3-306 shows the circuit that controls the intensity of the scanning lamp, and the circuit has the following functions: q Turns ON and OFF the scanning lamp. w Controls the intensity of the scanning lamp. • It serves to keep the intensity at a specific level in the presence of fluctuations in the power supply voltage.
3. OPERATIONS AND TIMING The LINT signal varies the pulse duty between 10% and 90% according to the setting of the Copy Density key, density of the original used, sensitivity of the drum, and the setting of the intensity control VR to execute phase control so that the supply voltage to the scanning lamp changes between 45 to 80 V (100V model) or between 98 and 175 V (200V model) in terms of effective values. In the case of photo mode, however, a voltage lower than normal by 5 V is supplied.
3. OPERATIONS AND TIMING b. AE Mode in the RDF (RFAE) An AE sensor is located in the RDF’s original path for measuring the density of originals. The AE sensor is a reflecting type sensor in which two LEDs emit light against an original and a photodiode measures the light reflected by the original. AE sensor 1 (S7) is used in left pick-up while AE sensor 2 (S33) is used in right pick-up (Figure 3-309). AE sensor 1 (S7) AE sensor 2 (S33) Figure 3-309 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING The density of an original is detected by measuring the five points shown in Figure 3-310 on the RDF side and is communicated to the copier’s DC controller PCB. The DC controller PCB uses the input to determine the intensity of the scanning lamp for copying. The points of measurement differ between right pick-up and left pick-up. L2 L2 L2 L2 15~20mm 9 12 14.6 22.2 25mm 98mm L1 L1: 32 mm (approx.; 1st page) 45 mm (approx.
3. OPERATIONS AND TIMING Figure 3-311 shows changes in the intensity of the scanning lamp in relation to different densities of originals under normal humidity conditions. If the density of an original is higher (darker) than that of the Test Sheet and is lower (lighter) than that of a newspaper, the intensity of the scanning lamp is varied between ‘medium’ and ‘maximum’ in terms of copy density notations.
3. OPERATIONS AND TIMING 4. Check Point a. Checking the Voltage at J122-5 (LRD) Check to make sure that the voltage between J1225-5 and J122-4 (GND) on the DC controller PCB is about 5 V when the scanner is moving forward and is 0 V during initial rotation, when the scanner is moving in reverse, and during last rotation. b. Intensity/AE Adjustment Table 3-303 shows a list of items that may be adjusted on the scanning lamp intensity control circuit.
3. OPERATIONS AND TIMING C. Controlling the Blank Exposure Lamp (LED) 4. Controlling the Activation in Sheet/Original Frame Erasing Mode 1. Outline The blank exposure lamp is an array of LEDs (124 pcs.). All of the LEDs (124 pcs.) turn ON when the drum is rotating except when an original is being exposed, potential is controlled, or measurements are taken for AE, thereby preventing adhesion of excess toner on the photosensitive drum.
3. OPERATIONS AND TIMING 5. Controlling the Activation in Book Frame Erasing Mode In book frame erasing mode, LEDs are turned ON so that a width of about 2 mm along the sides corresponding to the original will be free of toner. In addition, LEDs are also turned ON so that a width of about 20 mm along the center will be free of toner. The width along the center may be adjusted between 5 and 40 mm. ,,,,, , ,,,,, , ,,,,, , 20mm 2 mm (approx.) 7.
3. OPERATIONS AND TIMING D. Controlling the Primary/ Transfer Corona Current 1. Outline Figure 3-316 shows the circuit that controls the primary/transfer corona, and the circuit has the following functions: 1 Turns ON and OFF the primary corona current. 2 Controls the primary corona current to a constant level. 3 Turns ON and OFF the transfer corona current. 4 Switching the transfer corona current level. 2.
3. OPERATIONS AND TIMING The above condition causes the high-voltage transformer to send a high-voltage corresponding to the output of the primary charging level control signal (HVTPC) to the primary charging assembly.
3. OPERATIONS AND TIMING E. Controlling the Separation/ Pre-Transfer Corona Current The pre-transfer corona current is determined, on the other hand, based on the temperature and the humidity detected in advance. 1.
3. OPERATIONS AND TIMING 5. Controlling the DC Component Overcurrent of the Separation/Pre-Transfer Corona Current The DC current of the pre-transfer corona current is switched by the pre-transfer charging level control signal from the DC controller PCB. The DC current of the pre-transfer corona current is varied according to the voltage level (7 to 16 V) of the HVPCT signal.
3. OPERATIONS AND TIMING If leakage occurs and the HVOFF signal continues, however, the application of corona current will not be resumed unless the cause of the overcurrent is removed. Caution: Separation jams will be frequent if the corona current output applied to the transfer/separation charging assembly stops. Since such a fault will not be indicated on the control panel, check the mechanisms involved if separation jams start to occur frequently. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING F. Developing Assembly/ Cleaning Assembly The toner scraped off by the cleaning blade is moved to the rear of the copier by the screw inside the cleaning assembly; the toner is moved through the waste toner feeding pipe for collection in the waste toner case. The level of toner inside the waste toner case is monitored by the waste toner full detecting switch (SW13); when the toner is full, the switch sends the waste toner full signal (WTOFP) to the DC controller PCB. when 50.
3. OPERATIONS AND TIMING 2. Detecting the Level of Toner and Controlling the Supply The toner inside the developing assembly is checked by the black toner sensor (Q85) at intervals of 1 sec; the sensor sends the black toner supply signal BTS=0 to the DC controller when the level of toner inside the developing assembly falls below a specific level while the developing clutch (CL1) is on during copying operation.
3. OPERATIONS AND TIMING The level of toner inside the hopper assembly is checked by the hopper toner level sensor (Q31) while the hopper motor (M18) is operating to supply or stir toner. When the amount of toner inside the hopper falls below a specific level, the hopper toner level detection signal (TEP) goes ‘0’. The DC controller PCB indicates the Add Toner message on the control panel if the signal is detected for 1 sec or more; thereafter, the Copy Start button turns red.
3. OPERATIONS AND TIMING 3. Controlling the Developing Bias/Roller Electrode Developing cylinder , , , , Photosensitive drum a. Outline An AC bias and a DC bias are applied to the developing cylinder during copying operation.
, ,, , 3. OPERATIONS AND TIMING Power switch ON WMUP AINTR INTR CNTR1 CNTR2 LSTR STBY Drum motor (M1) Developing clutch (CL1) +130V DC bias AC bias +600V Figure 3-327 Copy Start key ON INTR Drum motor (M1) AER SCFW SCRV SCFW SCRV LSTR STBY Developing clutch (CL1) +600V DC bias AC bias VL2+80~90V +600V Figure 3-328 3-72 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING c. Developing Bias Control Circuit d. Roller Electrode Bias Control Circuit The circuit used to control the roller electrode bias has the following functions: (1) Turning ON and OFF the Roller Electrode q Turning OFF the Roller Electrode The roller electrode drive signal ROED is ‘1’, i.e., the registration roller is at rest. The switching circuit turns OFF. The drive circuit turns OFF. The high-voltage DC transformer turns OFF.
3. OPERATIONS AND TIMING 5. Detecting the Waste Toner Feeding Screw State (lock) The waste toner feeding screw lock detecting switch (SW20) is used to detect such movement of the gear A. When SW20 is pushed by the gear A, the waste toner feeding screw lock detection signal ( WTFL =0) is sent to the DC controller PCB, causing the drum motor (M1) to stop and ‘E013’ to be indicated on the control panel.
3. OPERATIONS AND TIMING 6. Idle Rotation of the Photosensitive Drum and the Developing Cylinder Copy image faults include “light images at initial power-on” and “image distortion under high humidity conditions.” To prevent such faults, service mode ( ✽ 5 ✽ ) may be used to cause the photosensitive drum and the developing cylinder to rotate idly in standby mode. (See Tables 3-306 and -307.
3. OPERATIONS AND TIMING G. Drum Heater Control Circuit The inside of the photosensitive drum is equipped with a drum heater (80 W), and the heater is controlled so that the surface temperature of the drum remains at a specific level. The AC power supplied to the drum heater comes through the relay unit, door switch (SW48), drum heater switch (SW34), and then the AC driver. When the relay unit is ON and the door switch (SW48) is ON while the drum heater drive circuit is OFF, half-wave AC power is supplied.
3.
3. OPERATIONS AND TIMING 2. Primary Charging Wire Automatic Cleaning Mechanism H. Primary Charging Wire Automatic Cleaning Mechanism If the surface temperature of the fixing roller is 160°C or less at power-on, the primary charging motor (M6) rotates clockwise to move the cleaner forward. When the cleaner rear detecting switch (SW4) located at the rear of the drum guide turns ON, the drive motor is rotated counterclockwise to move the cleaner in reverse.
3. OPERATIONS AND TIMING I. Pre-Transfer/Transfer/ Separation Charging Wire Automatic Cleaning The NP6085 is equipped with an automatic cleaning mechanism for the pre-transfer/transfer/separation charging assembly. As in the case of the automatic cleaning mechanism for the primary charging wire, the cleaner is driven by a cleaner drive motor with the help of a cleaner home position detecting switch.
3.
3. OPERATIONS AND TIMING IV. PICK-UP/FEEDING SYSTEM A. Outline The NP6085 uses center reference, in which copy paper is moved through the center of the pick-up/feeding path for stable pick-up/feeding operation. Pick-up operation may be upper/lower front tray pick-up, paper deck pick-up, and multifeeder pick-up or re-pick up, used when making twosided/overlay copies. In addition to the feeding path used for onesided copies, the NP6085 uses a separate feeding path for two-sided/overlay copies (No.
3. OPERATIONS AND TIMING ■ Paper Deck Sensor No. Q36 Q42 Sensor No. Name Multifeeder pickup paper sensor Multifeeder paper trailing edge sensor Q35 Q44 Name Paper deck pickup paper sensor Feeding sensor Table 3-402 3-82 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
COPYRIGHT © 1996 CANON INC. Q34 Copy tray Q13 Buffer assembly Q14 Q60 Lower front tray Upper front tray Q16 Figure 3-401 Q27 Feeding assembly Q7 NO. 2 feeding assembly Duplexing unit Q11 Q12 Q15 Q10 Fixing assembly Delivery assembly No.1 paper deflecting plate Q49 Q23 Q30 Q47 Q48 Q24 Q26 Q33 Feeder roller Photosensitive drum Registration roller Q46 Q44 Q42 Q36 Paper deck Q35 Multi feeder 3. OPERATIONS AND TIMING CANON NP6085 REV.
3. OPERATIONS AND TIMING B. Paper Deck The paper deck paper trailing edge sensor (Q44) is used to detect passage of copy paper, upon which the second and subsequent pick-up operations are initiated. To prevent skew movement, the copy paper is made to form an arch while the registration roller is at rest. To make sure that the copy paper will not arch excessively, the paper deck feeding roller stop clutch (CL18) is turned ON, thereby forcing the paper deck feeding roller OFF.
3. OPERATIONS AND TIMING 2.
3. OPERATIONS AND TIMING 3. Paper Deck Lifter Movement The paper deck motor (M4) is turned ON/OFF and its direction of rotation is switched based on combinations of signals from various sensors and switches (Q17, SW10, SW11, SW21) and the control signals from the microprocessor (Q115, master). The lifter is stopped when the top surface of the copy paper stacked on it turns ON the lifter position sensor (Q17). a. Outline The paper deck lifter is moved up and down by the drive of the paper deck motor (M4).
3. OPERATIONS AND TIMING b. Detecting the Volume of Copy Paper c. Paper Deck Motor Control Circuit The volume of remaining copy paper is checked by three sensors (Q43, Q45, Q18), and the result is indicated on the control panel in terms of three levels or the Add Paper message. q From when the lifter starts to move up until the sensor arm blocks the Q43, the result indicates that the volume of paper on the side tray is 1/2 or more.
3. OPERATIONS AND TIMING 2. Moving Down the Lifter b. Condition 2 • a. Condition 1 • The paper deck door is opened so that ➝ the door open signal (STD0) is ‘0’. • The lifter lower limit switch (SW11) is OFF so that ➝ the lifter lower limit signal ( STLLD ) is ‘1’. The above condition causes the combination circuit to generate the following outputs: up/down switching signal=0 and paper deck motor ON signal=0, thereby, moving down the lifter.
3. OPERATIONS AND TIMING C. Upper/Lower Front Tray 1. Pick-Up Operation The copy paper on the tray is kept up by the lifter, so that it remains in contact with the pick-up roller. When the pick-up clutch (CL4 or CL5) turns ON, the pick-up roller starts to rotate to pick up copy paper. Then, the pick-up roller releasing solenoid (SL11 or SL15) turns ON to move the pick-up roller away from the surface of the paper.
3-90 Lower front tray pick-up roller drive signal (LPUCD) J118-A11 Lower front tray pick-up roller release signal (LPRSD) J115-A10 Pick-up motor control PCB Pick-up motor M16 Upper front tray CL5 SL11 COPYRIGHT © 1996 CANON INC.
3. OPERATIONS AND TIMING 2. Sequence of Operations (pick-up from the upper/lower front tray) a.
3. OPERATIONS AND TIMING b.
3. OPERATIONS AND TIMING 3. Upper/Lower Lifter Movement and the lifter will be stopped. The upper limit detecting switch (SW16, SW18) is used in the event that the tray paper absent sensor (Q20, Q22) fails to operate for some reason and, as a result, the lifter fails to stop moving up. The lifter starts to move down when the tray open switch is pressed and keeps moving until the cam of the lifter presses the lower limit detecting switch (SW17, SW19). a.
3. OPERATIONS AND TIMING Pick-up feeding roller Sensor arm Front tray paper absent sensor (Q22 for upper/Q20 for lower) Front tray lifter position sensor (Q21 for upper/Q19 for lower) Pick-up roller DC controller PCB Separation roller Lifter Hole Tray case Figure 3-410 (cross section) 3-94 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING The lifter for the upper and the lower front tray is suspended by a cable which is connected to a reel. The reel rotates by the drive of the lifter motor (M3 for upper; M14 for lower), and the lifter moves up and down as the cable is taken up on the reel or released from the reel in relation to the direction of motor rotation. M Tray case Lifter motor Reel Cable Cable Cable Lifter Figure 3-411 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING b. Upper/Lower Lifter Motor Control Circuit These two signals are used to operate the motor drive circuit, thereby rotating the tray lifter motor (M3, M14) clockwise/counterclockwise or stopping it. An overcurrent detecting circuit is used to check for an overcurrent occurring as a result of a short circuit in the motor; the circuit forces OFF the motor ON signal in such cases to turn OFF the motor.
3. OPERATIONS AND TIMING 4. Opening/Closing the Upper/Lower Tray When the tray is released, it is pushed forward by several centimeters by the force of a spring. When the tray is pushed in, the tray open/closed sensor (SW14, SW15) turns ON, causing the tray motor to rotate in the opposite direction to move up the lifter. When the tray open switch is pressed, the tray motor (M3 or M14) starts to rotate, lowering the lifter of the tray.
3. OPERATIONS AND TIMING 5.
3. OPERATIONS AND TIMING 6. Detecting the Size of Copy Paper When the upper or the lower front tray is slid into the copier, respective size detecting switches are actuated. The microprocessor determines the size of the copy paper based on the combinations of the actuated switches as shown in Table 3-404; at the same time, the microprocessor determines the position to which the lens should be moved, the position at which the scanner should be reversed, and the method of controlling the blank exposure lamp.
3. OPERATIONS AND TIMING Side guide plate (rear) Width detecting switch Side guide plate (front) Length detecting switch Rear guide plate Figure 3-415 3-100 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING D. Multifeeder 1. Pick-Up Operation When copy paper is stacked on the multifeeder tray, the multifeeder paper sensor (Q29) turns ON, enabling selection of the multifeeder on the control panel. When the Copy Start key is pressed after selecting the multifeeder, the multifeeder pick-up clutch (CL12) turns ON, causing the pick-up roller, pick-up/feeding roller, and separation roller to rotate.
3. OPERATIONS AND TIMING 2. Detecting the Paper size in the Multifeeder The slide guide of the multifeeder is equipped with a variable resistor to detect the width of paper. The width of copy paper detected by the variable resistor is used for controlling the lens. The length of paper when the multifeeder is used, on the other hand, is identified the paper size whether large or small in relation to the signal in which the multifeeder large size detection sensor (Q41) remains ON.
, 3. OPERATIONS AND TIMING E. Controlling the Registration Clutch In margin mode, control is as shown in Figure 3-418 so that a margin will be created on copies for binding. The registration clutch controls copy paper so that paper matches the image on the drum at a specific point. Except in margin mode, copy paper is controlled by the registration clutch so that its leading edge matches the leading edge of the image on the drum.
3. OPERATIONS AND TIMING The sub roller lowers about 1 sec after the No. 2 feeding assembly inlet sensor (Q12) detects copy paper. In continuous copying, the pick-up assembly locking solenoid (SL8) is released (turned OFF) after the first sheet of copy paper has been fed by the sub feeding roller so that the first sheet of the stack is fed somewhat in advance; the pick-up assembly locking solenoid (SL8) is locked (turned ON) to operate the shutter guide for the second and subsequent sheets of copy paper.
3. OPERATIONS AND TIMING 1.
3. OPERATIONS AND TIMING G. Making Two-Sided Copies (copying on 1st side) The feeding path for the first side of a twosided copy is formed by the No. 1 paper deflecting plate. The No. 1 paper deflecting plates are operated by SL3 after the pre-registration paper sensor (Q30) has detected copy paper. When the trailing edge of copy paper has moved past the paper reversal sensor (Q13), the switch-back CW rotation clutch (CL2) turns OFF and the switch-back reversing clutch (CL3) turns ON.
3. OPERATIONS AND TIMING 1.
3. OPERATIONS AND TIMING H. Making Two-Sided/Overlay Copies (copying on 2nd side) For copying on the second side of a two-sided/ overlay copy, the paper is picked up from the duplexing unit. When the Copy Start key is pressed, the repick up motor (M25) turns ON as soon as the repick up clutch (CL6) turns ON. At this time, the pressure on the copy paper shutter guide is removed by the pick-up assembly releasing solenoid (SL8) to feed a single sheet of copy paper.
3. OPERATIONS AND TIMING 1. Re-Pick Up Motor Drive Circuit Figure 3-424 is a block diagram of the re-pick up motor (M25), and the circuit has the following functions: 1 Controls the speed of the motor. 2 Turns ON and OFF the motor. 3 Keeps the motor on hold. The re-pick up motor is a 4-phase stepping motor. The microprocessor (Q501) on the DC controller PCB generates the re-pick up motor drive signal (RPKUD) and two types of mode select signals.
3. OPERATIONS AND TIMING 2. Sequence of Operations (copying on 2nd side for two-sided/overlay copying) INTR SCFW SCRV SCFW SCRV LSTR STBY Original leading edge 1 sensor (Q4) Re-pick up clutch (CL6) Re-pick up motor (M25) Re-pick up releasing solenoid (SL8) Registration roller clutch (CL10) Re-pick up sensor (Q26) Re-pick up paper trailing edge sensor (Q33) Pre-registration paper sensor (Q30) Buffer assembly delivery sensor (Q60) Figure 3-425 3-110 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING I. Switching Paper Sizes (overlay/two-sided copying) 1. Paper Jogging Guide Plate Operation When the Copy Start key is pressed in twosided/overlay mode, the paper jogging guide drive motor (M11) starts to rotate in reverse, moving the paper jogging guide plate in the direction of ➡. The motor (M11) stops when the light-blocking plate of the paper jogging guide plate blocks the home position sensor (Q8).
3. OPERATIONS AND TIMING DC controller PCB Paper jogging guide plate (rear) ,,,, 3mm Paper jogging guide home position detection Paper jogging guide drive motor Q28 M11 Light-blocking plate CCW direction 3mm Copy paper Paper jogging guide (front) CW direction ,,,, CW rotation Paper size guide plate 3mm CCW rotation Figure 3-426 Tray Top View 3mm Last copy? NO YES CW rotation Figure 3-427 Arranging Sheets of Copy Paper 3-112 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING 2. Changing the No. 2 Feeding Assembly Path Each paper deflecting plate shifts up as soon as copy paper reaches the paper reversing assembly inlet sensor (Q11) to form an appropriate path. When copying on the first side in two-sided or overlay mode, the paper path in the No. 2 feeding assembly is changed to suit the size of copy paper. As many as four paths may be made by three paper deflecting plates. The paper deflecting plates are driven by their respective solenoids.
3. OPERATIONS AND TIMING 2. Operation J. Skipping Operation Skipping consists of the following series of operations: 1 Every other original placed in the RDF-D1 is copied; the copy paper after copying is stacked in the duplexing unit. The RDF-D1 detects the number of originals when the last original has been fed to find out whether there is an even or an odd number of originals. This is to determine how copies should be delivered. 2 Those originals which have been skipped are copied.
Download Service Manual and Resetter Printer at http://printer1.blogspot.com 3. Sequence of Skipping Operations (odd number of originals) 4. Sequence of Skipping Operations (odd number of originals) Original RDF 1 2 3 3 1 ➝ ➝ 2 ➝ ➝ 1 3 3 1 2 2 Scanner Fixing roller Drum Registration roller 3 Holding tray 3 w The 3rd and 2nd originals are picked up, and the scanner is moved to the center of the copyboard. q The Copy Start key is pressed.
3. Sequence of Skipping Operations (even number of originals) ➝ 1 2 3 1 4 4 ➝ 4 1 ➝ 1 2 3 4 2 Original RDF 3 3 2 Scanner Fixing roller Drum Registration roller 4 Holding tray 4 w The 4th and 3rd originals are picked up, and the scanner is moved to the center of the copyboard. q The Copy Start key is pressed. ➝ 3 ➝ 2 3 4 1 1 2 3 4 ➝ 1 2 ➝ 4 r The 3rd original is not copied (skipped), but the 2nd and the 1st originals are picked up.
3. OPERATIONS AND TIMING K. Fixing/Delivery Assembly 1. Outline The upper and lower rollers of the fixing assembly and the delivery roller of the delivery assembly are driven by the fixing motor (M17) through a clutch. (See Figure 3-433.) If a jam occurs in the fixing/delivery assembly, the fixing drive stop solenoid (SL17) is turned ON to stop the fixing roller immediately. The upper roller is equipped with two built-in heaters. (See Figure 3-432.
3. OPERATIONS AND TIMING a.
Delivery paper detection signal(PDP7) Paper reversing assembly outlet paper detection signal(PDP6) No. 2 feeding assembly inlet paper detection signal(PDP4) Paper reversal detection signal(PDP5) COPYRIGHT © 1996 CANON INC. Q15 Q13 Fixing drive stop signal(FXDSD) Switch-back reversal drive signal(SBRCD) Switch-back CW rotation drive signal(SBFCD) Paper reversing assembly inlet paper detection signal(PDP3) 3. OPERATIONS AND TIMING b.
3. OPERATIONS AND TIMING 2. Cleaning Belt The NP6085’s cleaning belt is kept in contact with the upper fixing roller in such a way so that both its face and back are used as shown in Figure 3-434. The face of the cleaning belt is intended to apply silicone oil to the upper fixing roller and the back, to clean the roller. Face of belt Cleaning belt Back of belt Cleans the face of the roller. Applies silicone oil. Upper fixing roller Figure 3-434 3-120 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING 3. Detecting the Remaining Length of the Cleaning Belt The remaining length of the cleaning belt is identified mechanically by the cleaning belt detecting lever (Figure 3-435) in reference to two notches in the belt. When the cleaning belt detecting lever comes to the notches, a warning is indicated on the control panel.
3. OPERATIONS AND TIMING 4. Reciprocating Mechanism for the Thermistor The thermistor is moved back and forth over a distance of 12 mm in the axial direction of the upper fixing roller to prevent damage to the roller by the thermistor (reciprocating mechanism). The drive for the mechanism is obtained from the cleaning belt solenoid (SL1) through a oneway arm.
3. OPERATIONS AND TIMING 5. Reciprocating Mechanism for the Upper Separation Claw The upper separation claw is moved over a distance of 3 mm in the axial direction to prevent damage to the roller by the claw. Upper fixing roller Separation claw 3mm Separation claw Reciprocating cam Fixing motor M17 Fixing assembly delivery roller Figure 3-437 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING 6. Sequence of Operations (1/2) • 45 min from power-on Power switch ON 170˚C 180˚C Copy Start key ON 190˚C WMUP AINTR INTR CNTR1 CNTR2 LSTR STBY INTR AER SCFW SCRV LSTR STBY Main heater (H1) Sub heater (H2) Fixing motor (M17) ON in green ON in orange Wait indicator Delivery detection (Q15) Cleaning belt drive solenoid (SL1) 200˚C 195˚C 190˚C 180˚C 170˚C Figure 3-438 3-124 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING Sequence of Operations (2/2) • 45 min from power-on and in energy saver/auto power-off 45 min Copy Start key ON STBY INTR AER SCFW SCRV LSTR Energy Saver key ON Auto power-off ON STBY *1 Main heater (H1) Fixing heater (M17) ON Energy Saver indicator OFF 200˚C 190˚C 180˚C 170˚C *1: May be varied in user mode. Figure 3-439 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING 7. Fixing Assembly Locking Mechanism The fixing assembly is designed so that it may be slid out to the front. If a jam stops the operation and the fixing assembly paper sensor (Q10) and the delivery sensor (Q15), or Q10 and the paper reversing assembly inlet sensor (Q11) detect the copy paper at the same time, the fixing assembly locking solenoid (SL16) is powered so that the fixing assembly cannot be removed.
3. OPERATIONS AND TIMING 8. Down Sequence The NP6085 is provided with a down sequence to ensure proper fixing in continuous copying under low-temperature conditions. The copying speed is reduced so that the distance between sheets will be longer when the thermistor (TH1) of the fixing roller detects any of the following surface temperatures for the fixing roller. The control mode may be any of three as selected in service mode ( ✽ 5 ✽ ; FIX-TEMP).
3. OPERATIONS AND TIMING 9. Controlling the Fixing Temperature for Jam Removal • Figure 3-441 explains the supply of power to the fixing assembly. The NP6085 turns ON and OFF the fixing assembly temperature control mechanism according to the following: • If a jam is removed by opening the front door (front door switch SW3OFF), The front door switch SW3 turns OFF. The main motor drive signal turns OFF. The sub heater drive signal turns OFF. The AC power supply turns OFF. The main motor turns OFF.
3. OPERATIONS AND TIMING L. Error Detection Circuit 2. Scanning Lamp Error Activation Detection Circuit 1. Outline The gate array receives the scanning lamp ON signal (LRD) and the scanning lamp ON detection signal (LAA). If the scanning lamp is ON in the absence of the scanning lamp ON signal, an error will be identified.
3. OPERATIONS AND TIMING 3. Fixing Heater Error Activation Detection Circuit The gate array receives the fixing heater ON signal (HRD) and the fixing heater ON detection signal (HRA). An error will be identified if the fixing heater is ON in the absence of the fixing heater ON signal (HRD). If such happens, the gate array informs the master CPU on the DC controller of a fixing heater error and, at the same time, generates the power switch OFF signal ( PWOFF ).
3. OPERATIONS AND TIMING 4. Motor Error Rotation Detection Circuit The motor error rotation detection circuit detects an error stop in relation to the operation of the scanner motor (M2), RDF belt motor (M3), and scanner original leading edge sensor 2 (Q38)/scanner home position sensor (Q5)/scanner C.F.F. position sensor (Q6). The gate array serves to reset the DC controller in response to the motor error stop detection signal (ECDRER).
3. OPERATIONS AND TIMING M. Face-Down Output 1. Outline ■ Copying Mode for Reversal Delivery 1 Skipping mode for an odd number of originals 2 C.F.F. in use Face-down output is always executed when copying takes place in either of the following two modes so that the copies will be turned during delivery and collated on the copy tray: a. Copies stacked with face-down output OFF (skipping, odd number of originals) b.
COPYRIGHT © 1996 CANON INC. M1 Figure 3-446b CL3 OFF CL2 OFF Figure 3-446a M1 OFF Q11 When Q11 turns OFF, i.e., the trailing edge of the copy paper has not moved past the No. 2 deflecting plate, CL2 turns OFF. CL3 OFF CL2 ON No. 2 paper deflecting plate Upper fixing roller The copy paper is sent to the path shown by the No. 1 and No. 2 paper deflecting plates (Q11 ON, CL2 ON) Copy paper ON Q11 No. 1 paper deflecting plate 2.
3. OPERATIONS AND TIMING N. Detecting Jams 1. Outline Figure 3-447 shows sensors used to monitor the movement of copy paper. Checks are made by reading the signals from the sensors at such times as programmed in advance in the microprocessor. The ongoing copying operation will be stopped immediately upon detection of a jam by the microprocessor. After stopping the operation, the Jam message will be indicated on the control panel, and the location of the jam will be indicated in the jam location indicator.
3. OPERATIONS AND TIMING Sensor No. Name Type of jam Sensor No. Name Q7 Fixing separation claw assembly paper sensor Fixing assembly paper sensor Paper reversing assembly inlet sensor No. 2 feeding assembly inlet sensor Paper reversal sensor Paper reversing assembly outlet sensor Delivery sensor Stationary jams Q26 Re-pick up sensor Duplexing unit paper sensor Pre-registration paper sensor Re-pick up paper trailing edge sensor Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q23 Q24 No.
Figure 3-447 Q49 Q23 Q47 Q46 Q13 Q11 Q12 Q60 Q34 Q14 Q15 Q10 Q7 Q16 Q27 Q26 Q33 Q48 Q24 Q30 Q44 Q42 Q36 Q35 3. OPERATIONS AND TIMING 3-136 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING ■ Main Body and the Multifeeder 1 Registration Roller Delay Jam Copy Start key ON Jam indicator ON INTR SCFW Upper front tray pickup paper sensor (Q24) 0.56 sec (approx.) Lower front tray pick-up paper sensor (Q23) 0.78 sec (approx.) Paper deck feeding sensor (Q44) 0.14 sec (approx.) Multifeeder paper trailing edge sensor (Q42) 0.12 sec (approx.) SCRV SCRV SCFW 0.37 sec (approx.
3. OPERATIONS AND TIMING 3 Upper Front Tray Pick-Up Delay Jam Copy Start key ON Jam indictor ON SCFW INTR SCRV SCFW Upper front tray pick-up clutch (CL14) 0.6 sec (approx.) Jam check Upper front tray pick-up sensor (Q48) Upper front tray paper trailing edge sensor (Q24) Normal Error 0.7 sec (approx.) Pick-up motor (m16) Figure 3-455 4 Lower Front Tray Pick-Up Delay Jam Copy Start key ON Jam indicator ON SCFW INTR SCRV SCFW Lower front tray pick-up clutch (CL5) 0.6 sec (approx.
3. OPERATIONS AND TIMING 5 Re-Pick Up Delay Jam Copy Start key ON INTR Jam indicator ON SCFW SCRV SCFW Re-pick up clutch (CL6) Jam check Re-pick up sensor (Q26) Re-pick up paper trailing edge sensor (Q33) Error Normal Pick-up motor (M16) Figure 3-457 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-139 Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING 6 Fixing Feeding Delay Jam Jam indicator ON SCFW SCRV SCFW LSTR SCRV Registration roller clutch (CL10) 1.2 sec 9approx.) Jam check Normal Fixing assembly paper sensor (Q10) Error Pick-up motor (M16) Figure 3-458 7 Fixing Feeding Stationary Jam Jam indicator ON SCFW SCRV SCFW LSTR SCRV Fixing assembly outlet delay jam check I Jam check Fixing assembly paper sensor (Q10) Normal Error Pick-up motor (M16) I: Varies depending on the length of copy paper.
3. OPERATIONS AND TIMING 8 Delivery Delay Jam Jam indicator ON SCFW SCRV LSTR Fixing assembly paper sensor (Q10) I Jam check Error Normal Delivery sensor (Q15) Pick-up motor (M16) I: In normal delivery mode, about 0.16 sec. : In face-down output, varies depending on the length of copy paper.
3. OPERATIONS AND TIMING 10 Buffer Assembly Delay Jam Jam indicator ON SCFW SCRV LSTR Delivery sensor (Q15) Jam check Error Normal Buffer assembly delivery sensor (Q60) Pick-up motor (M16) Figure 3-462 11 Buffer Assembly Delay Jam Jam indicator ON SCFW SCRV LSTR Buffer assembly delay jam check I Jam check Normal Buffer assembly paper sensor (Q15) Error Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-463 3-142 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING 12 Paper Reversal Delay Jam Jam indicator ON SCFW SCRV LSTR Fixing assembly paper sensor (Q10) I Jam check Paper reversing assembly inlet sensor (Q11) Error Normal Pick-up motor (m16) I: In normal delivery mode, about 0.16 sec. : In face-down output, varies depending on the length of copy paper. Figure 3-464 Jam indicator ON SCRV LSTR Paper reversing assembly inlet sensor (Q11) 0.12 sec (approx.
3. OPERATIONS AND TIMING 13 Paper Reversal Stationary Jam Jam indicator ON SCFW SCRV LSTR Paper reversing assembly inlet delay jam check I Jam check Normal Paper reversing assembly inlet sensor (Q11) Error Pick-up motor (M16) I: Varies depending on the length of copy paper. Figure 3-466 Jam indicator ON SCRV LSTR Paper reversing assembly inlet delay jam check I Jam check Paper reversal sensor (Q13) Normal Error Pick-up motor (M16) I: Varies depending on the length of copy paper.
3. OPERATIONS AND TIMING 14 Reversal Delivery Delay Jam Jam indicator ON SCRV LSTR Switch-back reversing clutch (CL3) 1.12 sec (approx.) Jam check Normal Reversing assembly outlet sensor (Q14) Error Pick-up motor (M16) Figure 3-468 15 Reversal Delivery Stationary Jam Jam indicator ON SCRV LSTR Paper reversing assembly inlet delay jam check I Jam check Paper reversing assembly outlet sensor (Q14) Normal Error Pick-up motor (M16) I: Varies depending on the length of copy paper.
3. OPERATIONS AND TIMING 16 No. 2 Feeding Assembly Inlet Delay Jam Jam indicator ON SCFW LSTR Paper reversing assembly inlet sensor (Q11) Paper reversal sensor (Q13) 1 sec (approx.) Jam check Normal No. 2feeding assembly inlet sensor (Q12) Error Pick-up motor (M16) Figure 3-470 17 No. 2 Feeding Assembly Inlet Stationary Jam Jam indicator ON SCRV LSTR No. 2 Feeding assembly delay jam check I Jam check No.
3. OPERATIONS AND TIMING V. CONTROL PANEL A. Outline The NP6085’s control panel consists of a control panel controller PCB, 320x240-dot LCD panel unit, transparent touch switch panel, and key switch panel and deals with the following: q data communication w LCD processing e LCD contrast automatic adjustment r touch switch input t key switch input 2. LCD Processing The microprocessor on the DC control PCB sends commands to the LCD controller as instructed by stored programs.
3. OPERATIONS AND TIMING Display memory LCD controller Column Column Column Column driver driver driver driver Row driver Buffer LCD panel Row driver Row driver Microprocessor Microprocessor Touch panel Key control panel DC controller PCB LED display Control panel controller PCB Figure 3-502 3-148 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING 3. LCD Contrast Automatic Adjustment 4. Touch Switch Input The control panel controller PCB is equipped with a function which automatically controls the LCD contrast. A thermistor (TH911) is used on the control panel controller PBC to monitor the temperature of the control panel. The changes in the resistance detected by the changes in the temperature monitored by the thermistor are used to vary the voltage supplied to the LCD, thereby maintaining the LCD contrast at all times.
3. OPERATIONS AND TIMING VI. FANS As many as eleven fans are used for the NP6085, serving to exhaust ozone, draw stray toner, and cool various parts. Table 3-601 shows the function of each fan, the filter used, and the orientation of the fan. Figure 3-602 shows when each fan turns ON. FM9 FM11 FM12 FM2 FM1 FM10 FM8 FM15 FM5 FM3 FM4 FM14 FM6 Figure 3-601a 3-150 COPYRIGHT © 1996 CANON INC. Figure 3-601b CANON NP6085 REV.
3. OPERATIONS AND TIMING No. Name Orientation Filter Description FM1 Scanner cooling fan Blowing Air Cools the scanner. FM2 Fixing assembly cooling fan Drawing Ozone, air •.Prevents internal overheating caused by the fixing heater. •.Exhausts vapors of silicone oil. FM3 Air exhaust fan Drawing Ozone, air Draws ozone generated by the primary/pre-transfer/transfer/separation charging assembly. FM4 Feeding fan Drawing Ozone, air •.
3. OPERATIONS AND TIMING Copy Start key ON Power switch OFF SCFW SCRV WMUP AINTR INTR CNTR LSTR STBY INTR AERSCFW Scanner cooling fan 1 (FM1) Developing fan (FM5) Scanner motor cooling fan (FM8) Primary charging assembly dust proof fan (FM9) Scanner cooling fan 2 (FM10) Scanner cooling fan (FM11) Transfer charging assembly dust proof fan (FM15) 15 min (approx.) LSTR STBY SCRV Power switch ON 15 min (approx.) 15 min (approx.
3. OPERATIONS AND TIMING VII. POWER SUPPLY A. Outline Figure 3-701 is a block diagram showing how power is distributed inside the NP6085.
3. OPERATIONS AND TIMING B. Power Supply Circuit 1. Outline of Operation The NP6085’s power supply circuit generates seven types of DC outputs: 38VU, 24VU, 24VR, 24VUN, 12VU1, 12VU2, and 5VR. The 12VU power supply circuit 1 operates to turn ON/OFF the power switch relay (RL3) at all times from when the copier’s power plug is connected until it is disconnected.
3. OPERATIONS AND TIMING As a means of protecting the power supply PCB, the input side of the AC power supply is equipped with a fuse and each switching regulator IC is equipped with an overcurrent protection circuit. When an overcurrent lowers because of a short circuit in the power line, the protection circuit will turn ON to turn OFF the output of the power supply unit. If such happens, disconnect the copier’s power plug, and remove the cause of activation; then, turn ON the power switch.
3. OPERATIONS AND TIMING C. Date/Time Display Power Supply A lithium battery is provided on the DC controller PCB to serve as a back-up power supply when the power plug is disconnected. Power plug connected Power switch ON Door switch The lithium battery has a life of about five years with the power plug disconnected. The date/time display will stop when the battery reaches its life. It will start once again when the power plug is connected.
3.
3-158 LF1 COPYRIGHT © 1996 CANON INC.
3. OPERATIONS AND TIMING VIII.C.F.F. (COMPUTER FORM FEEDER) A. Outline The C.F.F. is a device used to feed continuous paper (computer forms) capable of accommodating as large as 381x304.8 mm paper. The copier feeds continuous paper into the C.F.F. without moving the scanner to expose the original pages for copying. See Figure 3-801 for a block diagram of the signals exchanged between copier and C.F.F. DC controller PCB (copier) Q158 (master) C.F.F.
3. OPERATIONS AND TIMING B. Inputs to and Outputs from the C.F.F. Controller Inputs to and Outputs from the C.F.F. Controller (1/2) C.F.F. controller PCB Original sensor C.F.F. motor clock sensor PI 1 PI 2 MS1 Original set detecting switch J23 1 2 3 J5 1 2 3 J22 1 2 3 4 5 6 J26 1 J6 1 2 MS2 C.F.F. set detecting switch 3 NC 4 5 Cover open/closed detecting switch 5V (input)MCLK When the C.F.F. motor is rotating, alternates between '1' and '0'.
3. OPERATIONS AND TIMING Inputs to and Outputs from the C.F.F. Controller (2/2) C.F.F. Copier C.F.F. controller PCB J1 1 ~6 DC controller See p. 3-159. Line switching signal J1 DC power supply PCB 24VU 8 0V 7 24VU 9 0V 10 5V Regulator 24VU Lamp regulator C.F.F. lamp TS1 MS5 If the C.F.F. is not at home position, MS turns OFF to cut off the power to the sorter, thereby prohibiting sorter operation. DC power supply PCB Scanning lamp AC power When the C.F.F.
3. OPERATIONS AND TIMING C. Basic Operations 1. Outline of Operations The tractor and the delivery roller are driven using drive belts with drive from a stepping motor (M11) to move continuous paper. To crease the continuous paper sent to the original tray, the paper is moved at low speed up to the sixth page and the speed is increased thereafter. C.F.F. motor MS2 Original leading edge sensor(PI1) C.F.F.
3. OPERATIONS AND TIMING Continuous paper is set to the C.F.F., and the copier’s Copy Start key is pressed. C.F.F. lamp Original sensor (PI1) Index Continuous paper 1 The Copy Start key (copier) is pressed. (Figure 3-805) Delivery roller Tractor Copier No. 4 mirror C.F.F. mirror Photosensitive drum Figure 3-805 2 The stepping motor (C.F.F. motor PM1) rotates clockwise to move the continuous paper in normal direction.
3. OPERATIONS AND TIMING 4 The C.F.F. lamp illuminates the C.F.F. white plate, and the potential is measured. (Figure 3808) Photosensitive drum Figure 3-808 5 The C.F.F. motor (PM1) rotates clockwise to move the continuous paper in normal direction up to a point where the original sensor (PI1) can detect it. The C.F.F. motor stops upon detection. (Figure 3-809) Photosensitive drum Figure 3-809 6 The C.F.F. lamp illuminates the continuous paper, and AE measurement (p. 3-168) is executed.
3. OPERATIONS AND TIMING 8 The C.F.F.’s microprocessor sends the image leading edge signal to the copier, which in turn starts copying using the signal. (Figure 3-812) 1st page Perforation Photosensitive drum Figure 3-812 9 After copying the area between perforations of the continuous paper (single page), the C.F.F. motor is rotated counterclockwise to ensure coverage of images near perforation by moving the paper in reverse.
3. OPERATIONS AND TIMING 2. Sequence of Operations (with C.F.F. in use) Copy Start key ON INTR CNTR FW AER RV COPY RV COPY RV COPY C.F.F. lamp (LA2) Cooling fan (FM1, FM2) C. F. C.F.F. motor (PM1) F. CW CCW Original sensor (PI1) Original leading edge signal (CFLE) Ratio set Zoom lens Reverse Scanner movement Copier C.F.F. position sensor (Q6) C.F.F. mirror motor (M15) C.F.F.
3. OPERATIONS AND TIMING D. Optical Path with the C.F.F. in Use As mentioned, the copier reads original pages on continuous paper while feeding it by the C.F.F. (stream reading). When the C.F.F. is used, the No. 1 and No. 2 mirror mounts are moved farther left (C.F.F. position) than normal; then, the C.F.F. mirror shifts up to form the optical path for the C.F.F. C.F.F. Continuous paper Dust-proofing glass plates C.F.F. lamp Copyboard glass No. 4 mirror Zoom lens C.F.F. mirror No.
3. OPERATIONS AND TIMING The DC controller PCB in turn determines the intensity of the C.F.F. lamp for copying based on the surface potential measurement it has received. The C.F.F. lamp is controlled by the copier’s lamp regulator, and the power is switched to the scanning lamp or the C.F.F. lamp by the relay circuit inside the lamp regulator. The intensity control mechanism for the C.F.F. lamp is operated by the intensity adjustment signal (LINT) used for the scanning lamp of the copier.
3. OPERATIONS AND TIMING F. Automatic Paper Selection The C.F.F.’s tractor (front) is designed to move to suit the width of continuous paper. The tractor is equipped with a variable resistor whose resistance varies when the tractor is adjusted to the width of continuous paper, thereby allowing identification of the width of continuous paper. The length of continuous paper per page is identified in reference to the number of feeding holes in the paper.
3. OPERATIONS AND TIMING H. Fan Error Detection The C.F.F. is equipped with two fans used to exhaust the heat of the C.F.F. lamp. These fans have a built-in rotation signal circuit, and the state of rotation is monitored in reference to the rotation signal sent to the C.F.F. controller PCB.
3. OPERATIONS AND TIMING I. Checking the Feeding Operation The C.F.F. monitors every other hole in continuous paper being fed by its original sensor (PI1). The holes in the continuous paper are made at equal intervals, and the machine will be stoped if the holes are not identified at specific time intervals when the paper is moved at a specific speed, assuming the presence of a feeding fault (original jam).
3. OPERATIONS AND TIMING IX. SPECIFICATION AND ADJUSTMENT A. Mechanical 1 Leading Edge Non-Image Width Select ‘LE_BLANK’ in service mode ( ✻ 3 ✻ ). Adjust so that the leading edge non-image width is 4.0 +1.5, -1.0 mm when the Test Sheet is copied in Direct. (unit: 0.1 mm) 3 Left/Right Registration (paper deck; upper/ lower front tray position) Select ‘ERASE’ and enter ‘1’ in service mode ( ✻ 5 ✻ ).
3. OPERATIONS AND TIMING (—) (+) 0±2.0mm Screw Screws 0 2 4 6 8 10 Figure 3-904 (horizontal registration adjusting plate of front tray) 4 Figure 3-906 Left/ Right Registration (duplexing unit position; 2nd side of two-sided/ overlay copy) Select ‘ERASE’ in service mode ( ✻ 5 ✻ ), and enter ‘1’. Remove the front cover of the duplexing unit. Adjust by moving the guide plate of the re-pick up assembly so that the distance between the edge of the copy image and the end of copy paper is 0 ±2.
3. OPERATIONS AND TIMING B. Electrical System 1 AE Automatic Adjustment 1) Open the front door, and insert the door switch actuator into the door switch assembly. 2) Press the service mode switch with a hex key. 3) Select ‘AE_ADJ’ in service mode ( ✻ 4 ✻ ). 4) Place the Test Sheet on the copyboard, and close the copyboard cover. NA-3 Test Sheet 2 AE Slope Adjustment After executing AE automatic adjustment, make copies of a dark original (e.g., newspaper).
3. OPERATIONS AND TIMING 3 C.F.F. AE Automatic Adjustment 1) Open the front door, and insert the door switch actuator into the door switch assembly. 2) Press the service mode switch with a hex key. 3) Select ‘CFFAEADJ’ in service mode ( ✻ 4 ✻ ). 4) Without placing an original on the C.F.F. platen glass, close the C.F.F. cover. 5) Press the OK key to execute the mode. 6) Wait until the display changes from ‘F1’ to ‘F5’. 7) Place the Test Chart (FY9-9302-000) on the C.F.F.
3. OPERATIONS AND TIMING 5 RF AE Automatic Adjustment 1) Open the front door, and insert the door switch actuator into the door switch assembly. 2) Press the service mode switch with a hex key. 3) Select ‘RF_AE’ in service mode ( ✻ 7 ✻ ). 4) Place the Test Sheet in the RDF, and close the RDF. 5) Press the OK key to execute the mode. 6) Press the Reset key twice to end service mode. Reference: a.
3. OPERATIONS AND TIMING 7 Adjusting the Volume of the Primary Charging Assembly Adjust the volume of the primary charging assembly if • you have replaced the drum, • you have replaced the primary charging assembly, or • the value of VDM in service mode ( ✻ 1 ✻ ) is not VDT ±30 V. 1) Connect the power plug, and wait for 10 min or more after turning on the drum heater. 2) Turn the volume of the charging assembly fully to the left (to prevent excess increases in potential).
3. OPERATIONS AND TIMING w Taking Advantage of Non-Automatic Control Mode Use non-automatic control mode to find out if the cause of an image fault is on the input side or the output side of the microprocessor on the DC controller PCB. If the problem is corrected somewhat in nonautomatic control mode, you can suspect a fault in the potential measurement unit or the DC controller PCB. c. Zero-Level Check A zero-level check may be used to see if the surface potential control circuit is normal or otherwise.
3. OPERATIONS AND TIMING 5) Set the clip for the jumper wire to the potential sensor checking electrode. Caution: Take extra care never to let the clip touch the sensor cover. Keep it sufficiently away from the sensor window. 6) Connect one end of the jumper wire to J41 of the potential measurement PCB. 7) Insert the door switch actuator into the door switch assembly. 8) Turn ON the power switch. Caution: Do not touch the potential sensor once you have turned on the power switch.
3. OPERATIONS AND TIMING X. SERVICE MODE A. Outline The NP6085’s service mode is classified into the following seven types: Item Display Description ✻1✻ DISPLAY Display mode ✻2✻ I/O DISPLAY I/O display mode ✻3✻ ADJUST Adjustment mode ✻4✻ FUNCTION Function mode ✻5✻ USER OPTION User option mode ✻6✻ COUNTER Counter mode ✻7✻ APPLICATION Option mode Table 3-1001 3) Press the ✻ key twice to open the Selection screen. Then, select the mode (Table3-1001) you want to check or adjust.
3. OPERATIONS AND TIMING C. Using Adjustment Mode and User Option Mode In adjustment mode and user option mode, the settings on the control panel are stored in the RAM on the DC controller PCB to simulate conventional VRs and SWs. Figure 3-1002 shows the label attached behind the copier’s front right door. Each copier is adjusted in the factory, and the adjustment values are recorded on the label.
3. OPERATIONS AND TIMING D. Display Mode ( ✻ 1 ✻ ) • Select the screen using the / key. ✻1✻ DISPLAY DPOT : DVDT : VL1T : DVAE : DVDM : VL1M : VL2M : 430V 450V 180V 200V 460V 175V 175V Screen 1-1 Item Description DPOT Drum surface potential VDT Indicates the VD (dark area potential) target value. VL 1 T Indicates the VL1 (light area potential) target value. VAE Indicates the average surface potential during AE measurement. VDM Indicates the VD (dark are potential) measurement value.
3. OPERATIONS AND TIMING ✻1✻ DISPLAY LMP1 : 62.1V LMP2 : 132.4V WIRE : 0 PLMT : 0 LLMT : 0 FTMP : 190°C RTMP : 20°C HUM : 34 % 75g/kg Screen 1-2 Item Description Remarks LMP 1 Indicates the ON voltage for the scanning lamp (100V model). Unit: V LMP 2 Indicates the ON voltage for the scanning lamp (208/220/240V model). WIRE Indicates a value other than ‘0’ if the primary/pre-transfer/transfer/ separation charging wire cleaner stops at a point which is not its home position.
3. OPERATIONS AND TIMING • LMP1 and LMP2 indicate the ON control voltage value even when the scanning lamp is OFF. Caution: You must execute ‘wire cleaning’ in user mode ( ✻ mode) if a number other than ‘0 is indicated under ‘WIRE’ because of an error in the charging wire cleaner. If the wire cleaning motor and the wire cleaning assembly are normal, executing ‘wire cleaning’ will operate the cleaner unit; as a result, it will stop at home position and the indication will change to ‘0’.
3. OPERATIONS AND TIMING ✻1✻ DISPLAY ITPC : IPTC : IPTC : IPSC : BIAS : 1000µA –200µA –800µA 0100µA 0180V Screen 1-3 Item Description Remarks PC Indicates the current value for the primary charging assembly. Unit: µA PTC Indicates the current value for the pre-transfer charging assembly. Unit: µA TC Indicates the current value of the transfer charging assembly. Unit: µA SC Indicates the current value for the separation charging assembly.
3. OPERATIONS AND TIMING ✻1✻ DISPLAY DCMET_1: 0 DCMET_2: 0 DCMET_3: 0 DCMET_4: 0 Screen 1-4 Item Description Remarks DCMET_1 Indicates the output value of original size detection 1. 0/1 DCMET_2 Indicates the output value of original size detection 2. 0/1 DCMET_3 Indicates the output value of original size detection 3. 0/1 DCMET_4 Indicates the output value of original size detection 4. 0/1 3-186 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING ✻1✻ DISPLAY Q125: Q121: Q115: Q937: DF: SORT1: SORT2: CFF: 00.00.02.02 11.10.02.01 20.00.01.01 00.00.00.00 00.00.07.04 00.00.01.00 00.00.01.00 00.00.01.00 Screen 1-5 Item Description Remarks Q125 Indicates the version No. of the master ROM (Q125) on the DC controller PCB. Q121 Indicates the version No. of the slave ROM (Q121) on the DC controller PCB. Q115 Indicates the version No. of the internal processor (Q115) of the slave CPU. Q937 Indicates the version No.
3. OPERATIONS AND TIMING ✻1✻ DISPLAY B_ER1 : E240 B_ER2 : E005 B_ER3 : E240 B_ALARM : 0 PRINT_JAM : 000000 DH_JAM : 000000 Screen 1-6 Item Description B_ER 1 Indicates the latest self diagnosis code for the copier, RDF, C.F.F., and sorter. B_ER 2 Indicates the second latest self diagnosis code for the copier, RDF, C.F.F., and sorter. B_ER 3 Indicates the third latest diagnosis code for the copier, RDF, C.F.F., and sorter.
3. OPERATIONS AND TIMING ✻1✻ DISPLAY AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ AA BBBB CCCC DDDD E FFFF G HHHHHHH JJJJJ Screens 1-7 through -11 (8 rows x 5 pages of data per page) Item Description AA Indicates the history No. for the respective jam.
3.
3. OPERATIONS AND TIMING ■ RDF Jam Codes Left pick-up Right/left pick-up Type of jam Sensor Code Original left behind S5 S5 detects an original after the belt motor (M3) has rotated counterclockwise. 19 Original pulled out S1, S2 S2 does not detect an original for a specific period of time and, in addition, S1 does not detect an original after the pick-up motor (M1) has turned ON.
3. OPERATIONS AND TIMING Reversal Manual feed Type of jam Sensor Description Code Manual feed pickup stationary S32 After the feeding motor (M8) has turned ON, the original does not move past S32 after feeding 1000 mm or more in terms of length. 91 Manual feed pickup delay S20 After the feeding motor (M8) has turned ON, S20 does not detect an original after feeding 1000 mm or more in terms of length.
3. OPERATIONS AND TIMING Delivery Type of jam Sensor Description Code Delivery delay S5, S6 After S5 has detected an original, S6 does not detect an original after feeding 218 mm in terms of length. 25 Delivery stationary S6 S6 detects an original for ‘feeding direction length x 1.5’ mm or more in terms of length. 26 RDF open S31 The RDF is opened during operation. E1 Cover open S13, S14 The right or left cover is opened during operation.
3. OPERATIONS AND TIMING E. I/O Display Mode ( ✻ 2 ✻ ) • • Press the / key or enter the appropriate address number on the numeric keypad to select the appropriate screen. The screens will show the state of input or output ports. ✻2✻ I/O DISPLAY 15 • • • • • • 8 7 • • • • • • 0 P001 : 0 1 0 0 1 1 0 0 0 1 1 1 1 0 0 0 Screen 2-1 ✻2✻ I/O DISPLAY P034 : 0069 H Screen 2-2 3-194 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3.
3.
3.
3.
3. OPERATIONS AND TIMING Address Bit P007 5 (input) P008 (output) Display Notation Jack Remarks Side tray vertical path 1 paper detection (Q77) signal Q77D J603-A5 1: Paper present 6 Side tray vertical path 2 paper detection (Q78) signal Q78D J602-A8 1: Paper present 7 Buffer assembly paper detection (Q34) signal BPS J123-A6 1: Paper present 8 Not used 9 Not used 10 Scanner home position (Q5) signal SCHP J124-B9 1: HP 11 Scanner C.F.F.
3.
3.
3. OPERATIONS AND TIMING Address Bit P016 6 Not used 1: ON (input) 7 Not used 1: ON P017 (input) 0 Upper front tray paper width detection (SW22) signal UTPWU J119-B9 Alternates 0 and 1 at ON. 1 Upper front tray paper width lower detection (SW23) signal UTPWD J119-B11 Alternates 0 and 1 at ON. 2 Upper front tray paper length lower detection (SW24) UTPLD J119-A1 Alternates 0 and 1 at ON.
3. OPERATIONS AND TIMING Address Bit Display Notation Jack P022 (input) 2 Upper front tray open detection (SW14) signal UTRYO J115-B5 0: Open 3 Upper front tray open signal (SWLED1) UTOP J105-B4 0: Open 4 Upper front tray lifter position detection (Q21) signal ULTP J111-B11 1: Upper limit. 5 Upper front tray lifter down detection (SW17) signal UTLLD J115-A1 0: Switch pressed.
3. OPERATIONS AND TIMING Address Bit P025 (input) 5 P026 (input) P027 (output) P028 (output) 3-204 Display Notation Jack Remarks Middle side tray lifter lower limit detection (SW40) signal MSLLD J601-A9 0: Switch pressed. 6 Paper deck door open detection (SW12) signal STDO J501-A8 0: Open 7 Side tray right door open detecting (SW46) signal (slave CPU) RDO J605-A5 0: Open 0 Not used 1 Lower side tray paper level detection (Q84) signal LSTAS J601-B4 1: Paper running 1: short.
3.
3.
3.
3.
3.
3.
3.
3.
3.
3.
3. OPERATIONS AND TIMING Sorter Address Bit P093 3 Multiguide home position detection signal (PI 12) MGHP 4 Stapler unit swing prohibit position signal (MSW2) SGSTPP 5 Stapler unit orientation fixing position 2 signal (S1) HLD2 1: Front 1 point. 6 Stapler unit orientation fixing position 1 signal (S1) HLD1 1: 2 points/Rear 1: 1 point.
3. OPERATIONS AND TIMING Sorter Address Bit P097 0 DIP switch 1-8 detection signal 1: ON 1 DIP switch 1-7 detection signal 1: ON 2 DIP switch 1-6 detection signal 1: ON 3 DIP switch 1-5 detection signal 1: ON 4 Front door open signal (MSW3) 5 Not used 6 Not used 7 Not used 0 Stapling mode key check signal 1: ON 1 Stapling unit set detection signal 1: Stapler unit 1: present.
3.
3. OPERATIONS AND TIMING C.F.F. Address Bit P115 0 (output) Display Notation Jack C.F.F. motor (PM1) drive pulse A J2-3 1 C.F.F. motor (PM1) drive pulse A J2-4 2 C.F.F. motor (PM1) dive pulse B J2-5 3 C.F.F. motor (PM1) drive pulse B J2-6 4 Not used 5 Not used 6 LED1 ON – – 7 Original leading edge signal CFRE J1-2 – – – Remarks P116 0 (input) 1 Original set detection (MS1) signal DOSET J6-1 2 C.F.F.
3. OPERATIONS AND TIMING F. Adjustment Mode ( ✻ 3 ✻ ) • • • • Press the / key to select the appropriate screen. Press the item to select. (The selected item will be highlighted.) Enter the appropriate value using the numeric keypad or the ▲ / ▼ key; then, press the OK to store the value. Use the – / + key to enter a negative value.
3. OPERATIONS AND TIMING ✻3✻ ADJUST PRETRANS : 32 32 TRN_1 : 209 209 TRN_2 : 209 209 SEP_1 : 64 64 SEP_2 : 36 36 - + OK Screen 3-2 Item Description Settings PRETRANS Use it to adjust the current for the pre-transfer charging assembly. 1-221 TRN_1 Use it to adjust the current for the transfer charging assembly. (1st side) 34-254 TRN_2 Use it to adjust the current for the transfer charging assembly.
3. OPERATIONS AND TIMING ✻3✻ ADJUST REGIST_H : +0 +0 LIGHT_5H : +0 +0 LIGHT5PH : +0 +0 GLEAM_5H : 92 92 AE_SLOP : 0 0 - + OK Screen 3-3 Item Description Settings REGIST_H Use it to adjust the leading edge margin (registration) for copying at a 64% to 200% ratio. LIGHT_5H Use it to adjust the scanning lamp reference ON voltage for copying at a 64% to 200% ratio. A higher setting will decrease the copy density, thereby generating lighter copies.
3. OPERATIONS AND TIMING ✻3✻ ADJUST REGIST_L : +0 +0 LIGHT_5L : +0 +0 LIGHT5PL : +0 +0 GLEAM_5L : 95 95 - + OK Screen 3-4 Item Description Settings Remarks REGIST_L Use it to adjust the leading edge margin (registration) for overlay copying at a 50% to 63% ratio. LIGHT_5L Use it to adjust the scanning lamp reference ON voltage for overlay copying at a 50% to 63% ratio. A higher setting will decrease the copy density, thereby generating lighter copies.
3. OPERATIONS AND TIMING ✻3✻ ADJUST CFFRGST : +0 +0 CFFLIGHT : +0 +0 CFFGLEAM : 95 95 CFFAESLP : 0 0 - + OK Screen 3-5 Item Description Settings CFFRGST Use it to adjust the leading edge margin (registration) for copying using the C.F.F. CFFLIGHT Use it to adjust the reference ON voltage adjustment for the C.F.F. lamp. CFFGLEAM Use it to adjust the optimum exposure ON voltage for the C.F.F. lamp.
3. OPERATIONS AND TIMING ✻3✻ ADJUST A4_PSZ : +0 +0 A3_PSZ : +0 +0 A4R_PSZ : +0 +0 B4_PSZ : +0 +0 B5_PSZ : +0 +0 - + OK Screen 3-6 Item A4_PSZ A3_PSZ Description Use it to fine-adjust the paper jogging guide plate shift width of the duplexing unit for each paper size. A4R_PSZ B4_PSZ B5_PSZ 3-224 Use this mode if the size of copy paper is a non-default size when making twosided/overlay copies. COPYRIGHT © 1996 CANON INC.
3. OPERATIONS AND TIMING ✻3✻ ADJUST B5R_PSZ : +0 +0 LTR_PSZ : +0 +0 11X17_PSZ : +0 +0 LTRR_PSZ : +0 +0 LGL_PSZ : +0 +0 - + OK Screen 3-7 Item B5R_PSZ LTR_PSZ Description Use it to fine-adjust the paper jogging guide plate shift width of the duplexing unit for each paper size. 11X17_PSZ LTRR_PSZ LGL_PSZ Use this mode if the size of copy paper is a non-default size when making twosided/overlay copies. COPYRIGHT © 1996 CANON INC.
3. OPERATIONS AND TIMING ✻3✻ ADJUST BOOK_ERA : PRIMARY : 20 210 20 210 - + OK Screen 3-8 Item Description Settings BOOK_ERA Use it to set the book frame erasing width. 5-40 PRIMARY Use it to correct the application voltage for the primary charging assembly. (for factory adjustment) 8-254 3-226 COPYRIGHT © 1996 CANON INC. Remarks (unit: 1 mm) A higher setting will increase the margin. CANON NP6085 REV.
3. OPERATIONS AND TIMING G. Function Mode ( ✻ 4 ✻ ) • • • • • Press the / key to select the appropriate screen. Press the item to select. (The selected item will be highlighted.) Press the OK key to start the function. Be sure to execute each item in standby state. In this mode, the Copy Start key will be disabled.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION TONER_S : 0 (1:EXECUTING) HPPR_MTR : 0 (1:EXECUTING) FAN : 0 (1:EXECUTING) CFF_LAMP : 0 (1:EXECUTING) CFF_MRR 0 (1:EXECUTING) : OK Screen 4-2 Item Description Remarks TONER_S Use it supply toner at time of installation. A press on the OK key supplies toner from the hopper to the developing assembly (10 min max.). Thereafter, the toner inside the developing assembly will be stirred (5 min), and the operation will stop automatically.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION AE_ADJ : F5 0 (1:EXECUTING) F9 OK Screen 4-3 Item AE_ADJ Description Use it to execute density measurement level automatic adjustment for AE mode. COPYRIGHT © 1996 CANON INC. Remarks See p. 3-174. (only if PO.CONT is ON.) CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-229 Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION CFFAEADJ : F1 F5 0 (1:EXECUTING) F9 OK Screen 4-4 Item CFFAEADJ 3-230 Description Remarks Use it to execute density measurement level automatic adjustment for C.F.F. AE mode. COPYRIGHT © 1996 CANON INC. See p. 3-175. (only if PO.CONT is ON.) CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION GRID_ADJ : 0 (1:EXECUTING) DPOT: XXX V DVDT: XXX V OK Screen 4-5 Item GRID_ADJ Description Use it to adjust the primary charging assembly grid voltage. COPYRIGHT © 1996 CANON INC. Remarks See p. 3-177. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-231 Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION KEY_CHK : 0 (1:EXECUTING) ( 00.00 ) OK Screen 4-6 Item Description KEY_CHK Remarks A press on each key on the control panel will display the corresponding key. (See the guide below.) See Table3-1007. Press the OK key and then each key. To end the current mode, press the Reset key. ■ Guide to Key Codes Display Key Display Key Display Key Display Key 0 0. OF Reset 0 5. OF 7 0 A. OF 0 0 F. OF Power Saver 0 1. OF Stop 0 6. OF Clear 0 B.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION ERROR : 0 (1:EXECUTING) NIP : 0 (1:EXECUTING) PO.CONT : 0 (1:EXECUTING) JAM_RLS : 0 (1:EXECUTING) ERR_RLS : 0 (1:EXECUTING) OK Screen 4-7 Item Description Remarks ERROR Use it to clear E000, E001, E002, E003, E005, or E020. To clear the respective error code, press the OK key. NIP Use it to execute nip automatic measurement of the fixing roller.
3. OPERATIONS AND TIMING ✻4✻ FUNCTION RAM_INIT : 0 (1:EXECUTING) OK Screen 4-8 Item RAM_INIT 3-234 Description Remarks Use it to clear the data in the RAM on the DC controller PCB. COPYRIGHT © 1996 CANON INC. A press on the OK key will initialize the data in the RAM. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING H. User Option Mode ( ✻ 5 ✻ ) • • • Press the / key to select the appropriate screen. Press the item to select. (The selected item will be highlighted.) Enter the appropriate value using the numeric keypad. ✻5✻ USER OPTION 2SIDE_SL : 1 (0:0FF,1:ON) FUZZY : 0 (0~4) DENS_IND : 0 (0:9Lv,1:17Lv) COPY_LIM : 999 (1~999) FIX_TEMP : 0 (0~3) Screen 5-1 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
3. OPERATIONS AND TIMING Item Description Settings Remarks 2SIDE_SL Use it to set standard settings for two-sided (one-sided to two-sided) copying. 0: Select so that one-sided copying is standard. 1: Select so that two-sided copying is standard. (default) Press ‘0’ or ‘1’ on the numeric keypad. FUZZY Use it to execute fuzzy control and to set environment settings.
3. OPERATIONS AND TIMING ✻5✻ USER OPTION TRAY_4K : A4 A4 LTR Screen 5-2 Item TRAY_4K Description Settings Use it to select the appropriate paper size. COPYRIGHT © 1996 CANON INC. Use it to select the appropriate paper size. Remarks Use it to select the appropriate paper size. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-237 Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING ✻5✻ USER OPTION DF_SIZE : 0 (0:0FF,1:ON) ERASE : 0 (0~2) MRR_CONE : 1 (0:0FF,1:ON) CFF_JAM : 0 (0:0FF,1:ON) AE_SW : 0 (0:RF,1:PTN) Screen 5-3 Item Description Settings DF_SIZE Use it to set original size detection mechanisms for both ABand inch-configured papers when using the RDF. Both AB- and inch-configured originals are checked for size regardless of the country of installation.
3. OPERATIONS AND TIMING ✻5✻ USER OPTION SIZE_DET : 0 (0:0N,1:OFF) IDL_SW : 1 (0:0FF,1:ON) IR_DV_RT : 1 (0~2) ATPW_OFF : 0 (0:0N,1:OFF) PRCC_SEL : 1 (0~2) Screen 5-4 Item Description Settings Remarks SIZE_DET Use it to enable or disable the size detection function. 0: Enable original size detection. (default) 1: Disable original size detection. IDL_SW Use it to enable/disable drum idle rotation at power-on.
3. OPERATIONS AND TIMING ✻5✻ USER OPTION CALLSW : 0 (0:0FF,1:ON) OHP_TEMP : 0 (0:0FF,1:ON) VDT_SW 0 (0 ~ 4) : DOC_F_SW : 0 (0:0FF,1:ON) AL_DISP 0 (0:0FF,1:ON) : Screen 5-5 Item Description Settings Remarks CALL SW Use it to store copying modes current at time of a press on the Copy Start key. (up to 5) 0: OFF (default) 1: ON (A call key will be indicated on the message display; the user may press the key to select one from the most recent five.) Enter ‘0’ or ‘1’ on the numeric keypad.
3. OPERATIONS AND TIMING ✻5✻ USER OPTION P0_CNTMD : 0 (0 ~ 1) TRNSG_SW : 0 (0 ~ 4) SCAN_SEL : 0 (0 ~ 1) VL2_ADD : 0 (0 ~ 5) Screen 5-6 Item Description Settings P0_CNTMD Use it to select a times of the electropotential controll. 0: Executes 10 minutes and 60 minutes after power ON. (standard) 1: Executes once after power ON. TRNSG_SW Use it to setect a voltage of the transfer guide bias. 0: Charges the bias voltage at high humidity 1: Grounds at humidity that is 22g/kg or less.
3. OPERATIONS AND TIMING I. Counter Mode ( ✻ 6 ✻ ) • • Press the / key to select the appropriate screen. Press the counter name to select (highlight); then, press the Clear key to select the appropriate screen. Press the OK key to return the counter reading to ‘00000000’.
3. OPERATIONS AND TIMING ✻6✻ COUNTER S_TOTAL : 0 S_MULTI : 0 S_TRAY_1 : 0 S_TRAY_2 : 0 S_TRAY_3 : 0 OK Screen 6-2 Item Description S_TOTAL S-size total copy counter S_MULTI S-size multifeeder pick-up copy counter S_TRAY_1 S-size upper front tray pick-up copy counter S_TRAY_2 S-size lower front tray pick-up counter S_TRAY_3 S-size paper deck pick-up copy counter COPYRIGHT © 1996 CANON INC.
3. OPERATIONS AND TIMING ✻6✻ COUNTER L_OVLAY : 0 L_2_SIDE : 0 S_OVLAY : 0 S_2_SIDE : 0 L_PU : 0 R_PU : 0 CFF : 0 OK Screen 6-3 Item Description L_OVLAY L-size overlay copy counter L_2_SIDE L-size two-sided copy counter S_OVLAY S-size overlay copy counter S_2_SIDE S-size two-sided copy counter L_PU Left pick-up original feed counter R_PU Right pick-up original feed counter CFF Copy counter with C.F.F. in use 3-244 COPYRIGHT © 1996 CANON INC.
3. OPERATIONS AND TIMING ■ Incrementing the Count 1 TOTAL • For one-sided copying and copying on the second side of overlay/two-sided copies, when pick-up occurs at its respective source of paper. 2 OVLAY, 2_SIDE • For overlay/two-sided copying, when the copy paper is picked up for copying on the second side. 3 MULTI, TRAY_1–5 • When copy paper is picked up at its respective source of paper. 4 L_PU, R_PU • When the size of the original is identified after the original has been pulled into the RDF. 5 C.F.F.
3. OPERATIONS AND TIMING J. Option Adjustment Mode ( ✻ 7 ✻ ) • • • Press the / key to select the screen. Press the item to select. (The selected item will be highlighted.) Enter the appropriate value using the numeric keypad or the ▲ / ▼ key; then, press the OK to store the value. ✻7✻ APPLICATION DOC_ST_R : +0 +0 DOC_ST_L : +0 +0 DOC_ST_M : +0 +0 RF_LENSY : +0 +0 LA_LCKPS : +0 +0 - + OK Screen 7-1 Item Description Settings DOC_ST_R Use it to adjust the original stop position.
3. OPERATIONS AND TIMING ✻7✻ APPLICATION P_INTL_R : +0 +0 P_INTL_L : +0 +0 - + OK Screen 7-2 Item Description Settings P_INTL_R Use it to adjust the RDF (2-on-1 mode) right pick-up original-to-original distance. (The RDF changes the left/right pick-up position.) -10~+10 P_INTL_L Use it to adjust the RDF (2-on-1 mode) left pick-up original-to-original distance. (The RDF changes the left/right pick-up position.) COPYRIGHT © 1996 CANON INC. Remarks Unit: 0.5 mm CANON NP6085 REV.
3. OPERATIONS AND TIMING ✻7✻ APPLICATION RFAE_F5L : +0 +0 RFAE_F9L : +0 +0 RFAE_F5R : +0 +0 LA_SPEED : +0 +0 - + OK Screen 7-3 Item Description Settings Remarks RFAE_F5L Use it to adjust the scanning lamp reference ON voltage for RFAE mode/left pick-up. 0 ~ 255 A higher setting will decrease the copy density in RFAE mode, thereby generating lighter copies. RFAE_F9L Use it to adjust the scanning intensity for newspaper originals in RFAE mode/left pick-up.
3. OPERATIONS AND TIMING ✻7✻ APPLICATION RFSKEW : 0 (1:EXECUTING) RF_AE : 0 (1:EXECUTING) RFSE_INT : 0 (1:EXECUTING) OK Screen 7-4 Item Description Settings Remarks RFSKEW Use it to execute automatic adjustment of the RF skew detection reference value. (See 1 and 3 of Note.) Press the OK key to start. RF_AE Use it to execute automatic adjustment of the RF AE sensor. (See 3 of Note.) Press the OK key to start. RFSE_INT Use it to execute initial adjustment of the RDF sensor.
3. OPERATIONS AND TIMING Caution: Keep the following in mind for items in service mode ( ✻ 7 ✻ ) relating to the RDF; e.g., ‘DOC-STR’, ‘DOC-ST-L’, ‘DOC-ST-M’, ‘P-INTL-R’, and ‘P-INTL-L’: 1.These items affect the memory values on the RDF’s RDF controller PCB. You need not enter the values for these items, since initializing the copier’s RAM will not affect the memory of the RDF controller PCB. 2.For these items, the following are true; they are for direct input to the RDF controller PCB.
3. OPERATIONS AND TIMING XI. SELF DIAGNOSIS The microprocessor on the NP6085’s controller PCB is equipped with a function to check the condition of the machine (sensors in particular), issuing an error code to the control panel for display upon detection of an error. A. Copier Code Cause Description E000 •.Thermistor (TH1; poor contact or open circuit) • Fixing heater (H1; open circuit) • Thermal switch (TS1; open circuit) • SSR (fault) • DC controller PCB (fault) •.
3. OPERATIONS AND TIMING Code Description Cause E012 • Drum motor (M1; fault) • DC controller PCB (fault) •.After the drum motor drive signal has been generated, clock pulses are not generated within 2 sec. E013 • Waste toner feeding screw (error) • DC controller PCB (fault) •.After the waste toner feeding screw has become locked, the detecting switch (SW20) is pressed a multiple number of times within a specific period of time. E014 • Fixing motor (M17; fault) • DC controller PBC (fault) •.
3. OPERATIONS AND TIMING Code Cause Description E202 • Scanner (M2; fault) •.Scanner home position sensor (Q5; fault) • DC controller PCB (fault) •.The scanner home position signal (SCHP) is not generated within 10 sec after the power switch or the Copy Start key is pressed. E203 •.Scanner home position sensor (Q5; fault) • Scanner motor (M2; fault) • DC controller PCB (fault) •.While the scanner motor drive signal is being generated, clock pulses are not generated within 2 sec.
3. OPERATIONS AND TIMING Code Cause Description E270 •.Scanner motor (M2; fault) • DC controller PCB (fault) •.Scanner original leading edge sensor (Q38: fault) •.In stream reading mode, the scanner leading edge signal (SCDP2) is not generated within specific period of time after a command has been issued to lock the scanner. E710 • DC controller PCB (fault) • At power-on, the IPC (Q170) on the DC controller PCB cannot be initialized.
3. OPERATIONS AND TIMING Caution: 1.When the self diagnosis function has turned ON, you can reset the machine by turning its power switch OFF once. E000, E001, E002, E003, E005 or E020 is not reset by turning OFF the power switch; this is to prevent the user from casually resetting the machine when the thermistor has an open circuit, since such would overheat and damage the fixing roller and would cause overflowing of toner from the hopper.
3. OPERATIONS AND TIMING B. RDF Self Diagnosis Code Description Cause E400 • Copy data communication (fault) •.The communication is monitored at all times. The exchange of data with the copier is absent for 5 sec or more. E401 •.Pick-up roller sensor (S8, S21; fault) • Pick-up motor (M1; fault) • Pick-up clutch (CL1; fault) •.Initialization does not end in 2 sec; otherwise, for the pick-up roller, the flat face of the D-cut roller is at the top and is at home position.
3. OPERATIONS AND TIMING Caution: When the self diagnosis has activated, you can reset the machine by turning the copier’s power switch OFF and then ON. You can continue to make copies by disconnecting the RDF’s lattice connector and placing originals on the copyboard. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-257 Download Service Manual and Resetter Printer at http://printer1.blogspot.
3. OPERATIONS AND TIMING C. Sorter Self Diagnosis Code Cause Description E500 E510 •.CPU (Q1) or communication IC (Q3) on sorter controller PCB (fault) •.An error has been identified in the communication between sorter and copier. • Feeding motor (M1; fault) •.Clock signals from the clock sensor (PI 5) of the motor are absent for 250 msec or more. E522 • Push bar motor (M7; fault) •.The operation does not end within 2 sec after the generation of the motor drive signal.
3. OPERATIONS AND TIMING Cause Code Description E532 •.Stapler unit shift motor (M3; fault) •.The operation does not end in 500 msec after the generation of the motor drive signal. E533 •.Stapler paper sensor automatic adjustment (fault) •.The stapler paper sensor cannot be adjusted automatically or an error occurs in the automatic adjustment value. E540 • Bin shift motor (M9; fault) •.The operation does not end within a specific period* of time after the generation of the motor drive signal.
3. OPERATIONS AND TIMING D. C.F.F. Self Diagnosis Code Cause Description E441 • C.F.F. motor (PM1; fault) • C.F.F. motor clock sensor (PI 2; fault) • C.F.F. controller PCB (fault) •.The microprocessor on the C.F.F. controller PCB cannot detect clock pulses even though the C.F.F. motor drive signal is being generated. E442 • Heat exhaust fan (FM1, FM2; fault) • Fan rotation detection sensor (fault) • C.F.F. controller PCB (fault) •.
CHAPTER 4 MECHANICAL SYSTEM 1. 2. 3. 4. 5. ! Disconnect the power cord for safety before disassembly or reassembly work. Group the screws by type (length and diameter) and location. The fixing screw for the grounding wire and varistors is fitted with a washer to ensure electric continuity; be sure to use the washer for reassembly. If possible, avoid operating the machine with any of its parts removed. Unless otherwise noted, reassembly is the reverse of disassembly. COPYRIGHT © 1996 CANON INC.
I. II. III. IV. EXTERNALS .........................................4-1 A. External Covers ................................4-1 B. Control Panel....................................4-4 C. Door Switch Assembly .....................4-5 D. Fans..................................................4-6 E. Removing the Power Supply Cord Mount.....................................4-12 F. Removing the Counter Assembly...4-13 DRIVE SYSTEM..................................4-14 A. Scanner Drive Assembly ................
4. MECHANICAL SYSTEM I. EXTERNALS A. External Covers w e r t y u q i !0 o Figure 4-101 q w e r t Front right door Front left door Hopper upper cover Hopper supply mouth cover Upper right cover (4) COPYRIGHT © 1996 CANON INC. y u i o !0 Upper left cover (2) Multifeeder cover Paper deck cover Multifeeder tray Front left cover (2) CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-1 Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM i o !0 q w e r u y t Figure 4-102 q w e r t y u i o !0 Upper left cover (2) Left cover (6) Buffer upper rear cover (4) Buffer lower rear cover (2) Rear lower left cover (2) Upper rear left cover (3) Rear right cover (3) Rear upper right cover (4) Rear upper cover 2 (2) Rear upper cover 1 (3) Note: The number in parentheses indicates the number of mounting screws used.
4. MECHANICAL SYSTEM Remove the covers as necessary to clean, inspect, or repair the inside of the machine. Those covers that may be removed by mere removal of mounting screws are left out of discussions. 1. Removing the Process Cover 1) Open the front door. 2) Slide out the duplexing unit assembly q, and shift the jam removal lever w in the direction of the arrow. 2. Removing the Pick-Up Assembly Cover 1) Open the front door.
4. MECHANICAL SYSTEM 3) Remove the two screws e, and remove the duplexing unit front cover r. B. Control Panel 1. Removing the Control Panel 1) Shift the RDF upright. 2) Remove the two screws q, and remove the magnet plate w. 1 3 4 2 1 3 Figure 4-107 Figure 4-108 3) Open the front door, and remove the six mounting screws e; then, remove the control panel unit r. 3 4 3 Figure 4-109 4-4 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
4. MECHANICAL SYSTEM 4) Turn over the control assembly unit; then, remove the screw t, and remove the harness guide y used to keep the harness in place. Release the four wire saddles u, and remove the cable i. 5) Remove the three mounting screws o, and remove the insulating sheet !0; then, disconnect the eight connectors !1, and remove the control assembly !2. 11 11 10 7 8 7 C. Door Switch Assembly 1. Removing the Front Door Switch Assembly 1) Remove the control panel from the copier. (p.
4. MECHANICAL SYSTEM 2. Removing the Delivery Door Switch Assembly 1) Open the front door, and remove the two mounting screws; then, remove the delivery assembly cover. 2) Push the fixing assembly releasing lever, and slide out the fixing assembly; remove the screw and the two fastons, and remove the delivery door switch assembly e. D. Fans 1. Removing the Scanner Cooling Fan 1 (FM1) 1) Remove the control panel. (p. 4-4) 2) Remove the three mounting screws q, and remove the duct plate w.
4. MECHANICAL SYSTEM 2. Removing the Scanner Cooling Fan 2 (FM10) 1) Remove the upper left cover. 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the scanner cooling fan e. 2 1 4. Removing the Fixing Cooling Fan (FM2), Exhaust Fan (FM3), and Power Supply Cooling Fan (FM6) 1) Remove the rear cover. 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the fixing cooling fan e.
4. MECHANICAL SYSTEM 5. Removing the Feeding Fan (FM4) 6. Removing the Developing Fan (FM5) 1) Remove the rear cover. 2) Remove the three mounting screws q, and move the harness guide plate w to the left. 1) Remove the primary charging assembly from the front of the copier. 2) Remove the exhaust fan. (p.
4. MECHANICAL SYSTEM 7. Removing the Primary Charging Exhaust Fan (FM9) 1) Remove the control panel (p. 4-4) 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the primary charging exhaust fan e. 3 2 1 9. Removing the Fixing Cooling Fan (FM2) 1) Remove the rear right cover and the rear upper left cover. 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the fixing cooling fan e. 1 2 3 Figure 4-124 Figure 4-122 8.
4. MECHANICAL SYSTEM 10.Removing the Fixing Heat Exhaust Fan 2 (FM13) 3) Remove the two mounting screws r, and remove the fixing heat exhaust fan 2 t. 1) Remove the upper left cover and the left cover, release the buffer assembly. 2) Disconnect the connector q, and loosen the six mounting screws w (front, rear); then, remove the buffer path upper unit e. 1 4 3 2 2 5 4 Figure 4-128 Figure 4-127 4-10 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
4. MECHANICAL SYSTEM 11.Removing the Developing Assembly Heat Exhaust Fan (FM14) 1) Remove the rear right cover. 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the developing assembly heat exhaust fan e. e Caution: When removing the transfer charging dustproofing fan, be sure to perform cleaning work as follows: 1) Replace the filter (every 250,000 copies).
4. MECHANICAL SYSTEM 4) Remove the two screws, and remove the transfer charging dust-proofing duct; tap it above waste paper (copy paper) so that it is free of residual toner. Screws E. Removing the Power Supply Cord Mount 1) Open the front door. 2) Remove the four mounting screws q, and remove the power supply cover w. 2 Transfer charging dust-proofing duct 2 1 Figure 4-132 5) Remove the screw, and remove the cap. 1 Figure 4-135 Screw 3) Remove the buffer rear lower cover.
4. MECHANICAL SYSTEM F. Removing the Counter Assembly 1) Remove the pick-up assembly cover. 2) Remove the mounting screw q, and remove the environment sensor. Remove the mounting screw e, and disconnect the connector r; then, remove the counter assembly t together with the support plate. 5 3 4 1 2 Figure 4-137 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-13 Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM II. DRIVE SYSTEM 6) Remove the four mounting screws !2, and remove the scanner drive motor !3. A. Scanner Drive Assembly 12 13 12 1. Removing the Scanner Drive Motor 1) Remove the rear upper right cover and the rear right cover. 2) Remove the two mounting screws q, and disconnect the connector; then, remove the developing assembly heat exhaust fan e. 3) Remove the two mounting screws r, and remove the fan support plate t.
4. MECHANICAL SYSTEM Tie the screw 8 7 3 Loose the screw 1 6 Screw 5 Tighten temporarily 4 2 Steel ball Wind eight times 2. Routing the Scanner Drive Cable Figure 4-204 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-15 Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM 3. Adjusting the Tension of the Scanner Drive Cable 4. Adjusting the Mirror Position (optical length between No. 1 mirror and No. 2/No. 3 mirror) After routing the scanner drive cable, be sure to perform the following to adjust its tension: 1) Remove the two mounting screws, and remove the upper left cover. 2) Loosen the fixing screw of the tension spring bracket. 3) Turn the tension adjusting screw so that the distance a in Figure 4-205 is as indicated. • 1.0 ±0.
4. MECHANICAL SYSTEM 5. Adjusting Scanner Home Position Select ‘BRAKE_SC’ in service mode ( ✽ 3 ✽ ). Insert a ruler into the hole in which the C.F.F. home position sensor is installed, and stop the scanner at home position. Change the setting using the numeric keypad so that the position is 37 ±2.5 mm from the left side plate; then, press the OK key. 37±2.5mm B.
4. MECHANICAL SYSTEM 4) Disconnect the connector y, and remove the two mounting screws u; then, remove the lens Y direction motor i together with the support plate. 7 6 2. Lens X Direction Drive Motor 1) Remove the copyboard glass. 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the original sensor unit e. 3) Remove the three mounting screws r, and remove the lens cover t.
4. MECHANICAL SYSTEM 5) Disconnect the connector i, and remove the two mounting screws o; then, remove the X direction drive motor assembly !0 together with the support plate. 9 C. Drum Motor Assembly 1. Removing the Drum Motor Assembly 1) Remove the rear cover. 2) Remove the mounting screw, and remove the harness guide plate. 3) Remove the exhaust fan. (p.
4. MECHANICAL SYSTEM D. Pick-Up Motor Assembly 1. Removing the Pick-Up Motor Assembly 1) Remove the rear right cover. 2) Remove the two mounting screws q, and disconnect the connector w; then, remove the developing assembly heat exhaust fan e. 3) Remove the two mounting screws r, and remove the fan support plate t. e t w 5) Disconnect the two connectors o, and remove the four mounting screws !0; then, remove the pick-up motor assembly !1.
4. MECHANICAL SYSTEM E. Fixing Motor Assembly F. Drum/Developing Drive Assembly 1. Removing the Fixing Motor Assembly 1) Remove the rear upper left cover and the rear lower left cover. 2) Disconnect the two connectors q, and remove the four mounting screws w; then, remove the fixing motor assembly e. 2 1. Construction 3 2 Figure 4-219 2.
4. MECHANICAL SYSTEM G. Pick-Up Drive Assembly 7) Disconnect the five connectors, and remove the two mounting screws w: then, remove the scanner motor controller PCB e. 1. Construction 1 2 3 2 Figure 4-222 8) Remove the three mounting screws r, and remove the clutch unit t; then, detach the drive belt from the pulley y. Figure 4-221 2. Removing the Pick-Up Drive Assembly 1) Remove the rear upper right cover and the rear right cover.
4. MECHANICAL SYSTEM 9) Remove the spring u from the tension pulley assembly. Remove the two mounting screws i, and remove the drive assembly cover o; then, release the drive belt !0 from the pulley. Reference: 10 10 8 7 9 Figure 4-224 10) Remove the four mounting screws !1, and remove the pick-up drive assembly !2 to the front. Figure 4-226 11 11 12 11 Figure 4-225 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
4. MECHANICAL SYSTEM 3. Removing the Front Tray Pick-Up Clutch 1) Remove the rear upper right cover and the rear right cover. 2) Remove the screw q, and remove the harness guide plate. Remove the two mounting screws w, and disconnect the six connectors e; then, remove the scanner motor controller PCB r. 4) To remove the pick-up clutch of the lower front tray, remove the DC controller PCB (p. 4-95) and the DC power supply unit (p. 4-95).
4. MECHANICAL SYSTEM ■ Points to Not When Installing the Front Tray Pick-Up Clutch When installing the clutch, make sure that the boss q at the clutch rear is aligned with the slip stop. 4. Removing the Feeding Roller Clutch and the Feeding Roller Stop Clutch 1) Remove the rear right cover. 2) Remove the screw q, and remove the harness guide plate. Disconnect the five connectors w, and remove the two mounting screws e; then, remove the scanner motor controller PCB r.
4. MECHANICAL SYSTEM 3) Remove the E-ring t, and remove the pulley y. (Take care not to drop the parallel pin.) Remove the three mounting screws u, and remove the pick-up drive assembly cover i. Loose the one screw o, push the tensioner plate to the arrow to loose the tension. Remove the belt a. 5) To remove the feeding roller stop clutch, remove the three mounting screws !4, and remove the feeding roller stop clutch assembly !5. (Do not remove the pick-up drive assembly cover.
4. MECHANICAL SYSTEM H. Front Tray Drive Assembly 1) Remove the rear upper right cover and the rear right cover. 2) Remove the scanner motor controller PCB. 3) Remove the tension spring q, and remove the two mounting screws; then, remove the bearing stopper plate e. (At this time, remove the timing belt.
4. MECHANICAL SYSTEM J. Fixing Relay Drive Assembly K. Fixing Buffer Drive Assembly 1. Construction 1. Construction Figure 4-242 2. Removing the Fixing Buffer Drive Assembly Figure 4-240 2. Removing the Fixing Relay Drive Assembly 1) Remove the rear cover. 2) Remove the fixing motor (p. 4-21) 3) Remove the sprig of the tensioner, and remove the four mounting screws q; then, remove the fixing relay drive assembly w.
4. MECHANICAL SYSTEM 4) Remove the four mounting screws t, and disconnect the two connectors y; then, remove the fan unit u. 5 6 1 Figure 4-244 3) Remove the seven mounting screws w, and disconnect the connector e; then, remove the buffer path unit r. 2 5 7 5 3 2 Figure 4-246 5) Mark the position with a scribe, and remove the two mounting screws i; then, remove the gear unit o. 8 2 4 9 2 Figure 4-245 Caution: If the buffer path unit is disassembled.
4. MECHANICAL SYSTEM 4) Remove the four mounting screws t, and disconnect the two connectors y; then, remove the fan unit u. 5 6 1 Figure 4-244 3) Remove the seven mounting screws w, and disconnect the connector e; then, remove the buffer path unit r. 2 5 7 5 3 2 Figure 4-246 5) Mark the position with a scribe, and remove the two mounting screws i; then, remove the gear unit o. 8 2 4 9 2 Figure 4-245 Caution: If the buffer path unit is disassembled.
4. MECHANICAL SYSTEM 6) Remove the fixing motor. (p. 4-21) 7) Remove the fixing relay drive assembly. (p.4-28) 8) Remove the three mounting screws !0, and remove the fixing buffer drive assembly !1. L. CW/CCW Rotation Roller 1. Construction 10 Figure 4-250 2. Removing the CW/CCW Rotation Roller 10 11 Figure 4-248 Caution: Be sure to mark the position with a scribe before loosening the tension of the fixing drive assembly. 1) Remove the rear right cover and the rear lower left cover.
4. MECHANICAL SYSTEM 3. Adjusting the Tension of the Drive Belt Adjust the drive belt to transmit the drive of the CW/CCW rotation roller drive assembly to each gear so that the values are as shown in Figure 4252. 600±100g Adjusting screw 600±60g Adjusting screw Figure 4-252 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-31 Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM III. PICK-UP/FEEDING SYSTEM 2. Removing the Pick-Up Roller 1) Remove the multifeeder assembly. 2) Remove the multifeeder cover. 3) Remove the two mounting screws, and remove the upper left cover. 4) Remove the two mounting screws q, and remove the two multi shutter stoppers w. A. Multifeeder Assembly 1. Removing the Multifeeder Assembly 1) Remove the rear upper right cover, rear right cover, and upper right cover. 2) Remove the two screws, and remove the front right cover.
4. MECHANICAL SYSTEM 6) Remove the two stop rings t at the rear, and remove the shutter y. Remove the E-ring, and pull out the parallel pin of the gear by moving the pulley and the gear to the front. Move the pick-up roller shaft i to the rear, and remove the pick-up roller o together with the parallel pin. (Be careful not to drop the parallel pin.) ■ Orientation of the Shutter (front, rear) When installing the shutter, be sure so that it is oriented as shown in Figure 4-306.
4. MECHANICAL SYSTEM 5) Remove the two mounting screws e, and remove the two multi shutter stopper plates r. 6) Remove the mounting screw t, and remove the tensioner y. 7) Remove the stop ring u, and remove the timing belt i; then, remove the pick-up/feeding roller o. 5) Turn over the multifeeder assembly, and lift the separation roller locking plate e to remove the separation roller r. e r 4 3 9 7 4 3 6 Figure 4-310 5 8 Figure 4-308 4.
4. MECHANICAL SYSTEM B. Paper Deck Assembly 2. Removing the Pick-Up Roller 1. Removing the Paper Deck Assembly 1) Remove the multifeeder assembly. (p. 4-32) 2) Mark the position of the paper deck with a scribe in advance, remove the four mounting screws q, and disconnect the three connectors w; then, remove the paper deck assembly by lifting it. 1) Open the paper deck cover, and remove the stop ring q at the front and at the rear; then, remove the pick-up roller w.
4. MECHANICAL SYSTEM 3. Removing the Pick-Up/Feeding Roller 1) Remove the multifeeder assembly from the copier. (p. 4-32) 2) Remove the mounting screw q, and remove the roller stopper plate w. 6) Remove the stop ring o. 7) While pushing down the separation roller assembly !0, detach the timing belt !1 and remove the pick-up/feeding roller assembly !2. o !22 q !1 w Figure 4-315 !0 3) Remove the pick-up roller at the front.
4. MECHANICAL SYSTEM 4. Removing the Separation Roller 1) Open the paper deck cover, and remove the mounting screw q; then, remove the separation roller assembly cover w. w ■ Adjusting the Pick-Up/Feeding Roller Pressure If pick-up failure or double feeding occurs frequently, change the position of the spring to change the pick-up pressure of the roller. q If pick-up failure occurs, increase the pickup pressure. w If double feeding occurs, decrease the pickup pressure.
4. MECHANICAL SYSTEM 5. Adjusting the Position of the Pick-Up Roller Releasing Solenoid 1) Place a sheet of copy paper on the paper deck lifter, and turn ON the power switch. 2) When the lifter has stopped moving up, disconnect the power plug, and open the paper deck tray cover. 3) Remove the paper deck cover (rear). 4) Install the solenoid so that the pick-up roller is 4.0 ±1 mm from the surface of the paper when the plunger of the pick-up roller releasing solenoid is pushed in. C.
4. MECHANICAL SYSTEM w You could deform the size detecting rail at the rear if you lifted its front. Size detecting rail 3. Removing the Pick-Up/Feeding Roller 1) Remove the front tray. 2) Slide out the duplexing unit; while lifting the feeding assembly, remove the mounting screw q and the roller stopper plate w. 3) Remove the E-ring e, and move the drive belt r to the front. Remove the stop ring t, and remove the pick-up/feeding roller y while detaching the drive belt r. 4 1 2 Figure 4-343 1.
4. MECHANICAL SYSTEM 4. Removing the Separation Roller 1) Remove the front tray. 2) Remove the mounting screw q, and remove the separation roller assembly w together with the support plate. q If pick-up failure occurs, increase the pressure. w If double feeding occurs, decrease the pressure.
4. MECHANICAL SYSTEM 6. Adjusting the Paper Height on the Front Tray Separation plate If pick-up failure or double feeding jams occur frequently, check the position of the lifter (sensor); as necessary, make the following adjustments: ■ Adjusting the Paper Height 1) Remove the duplexing unit, plate paper on the front tray; then, move up the lifter.
4. MECHANICAL SYSTEM 7. Routing the Lifter Cable for the Front Tray Tighten temporarily 300g 300g 1kg 300g Spring gauge Tighten temporarily Figure 4-352 Tighten Place two packs of copy paper (A3), and tighten the screws when the tension at each cable end is as indicated (reading of the spring gauge). Figure 4-352a 4-42 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM 8. Adjusting the Position of the Front Tray Pick-Up Roller Releasing Solenoid Adjust the position of the solenoid so that the distance from the center of the solenoid mounting plate and the solenoid is 19.8 ±0.3 mm. (To facilitate the work, you may remove the front pick-up roller releasing solenoid assembly.) 19.8±0.3mm D. Pick-Up Vertical Path Roller Assembly 1. Removing the Pick-Up Vertical Path Roller from the Copier 1) Remove the copier’s rear right cover.
4. MECHANICAL SYSTEM 5) Remove the three screws i (w/ hex hole), and loosen the tensioner of the drive belt; then, remove the drive gear 1 !0 toward the front. 10 8 7) Remove the two mounting screws !5, and remove the two float pins !6. 8) Remove the E-ring !7, and remove the bearing !8. 17 18 9 16 8 8 15 16 Figure 4-357 6) Remove the mounting screw !1, and remove the slip stop !2 of the clutch. Remove the two E-rings !3, and remove the drive gear 2 !4 together with the drive belt.
4. MECHANICAL SYSTEM 12)Remove the E-ring @3, and remove the bearing @4. 14)Remove the U-guide and the two E-rings @8 (front, rear) and the two bushings @9 (front, rear) of the pick-up roller shaft assembly; then, remove the U-guide plate #0 from the pick-up roller shaft. 24 30 23 19 28 21 22 20 Figure 4-360 13)Remove the two screw @5, and take off the plate @6. While lifting the feeding assembly, move the duplexing pick-up paper guide @7 to the left.
4. MECHANICAL SYSTEM E Feeding Assembly 5) Remove the E-ring e from the feeding assembly support shaft, and remove the bearing. 1. Construction Transfer/separation charging assembly electrodes Feeding belt Transfer guide Figure 4-363 2. Removing the Feeding Assembly from the Copier 1) Remove the rear right cover, rear upper left cover, and rear lower left cover. 2) Remove the fixing motor. (p. 4-21) 3) Remove the fixing relay drive assembly. (p.
4. MECHANICAL SYSTEM 8) Remove the two fastons u (green; transfer/ separation) for high-voltage cable from the high-voltage transformer assembly. 3. Removing the Feeding Belt 1) Remove the seven mounting screws q, and remove the duct w. 2) Remove the three mounting screws e, and remove the holding tray feeding rail r. 4 2 3 7 Figure 4-367 Caution: Take note of the position of the cable connected to the high-voltage transformer. 1 Figure 4-369 9) Open the copier’s front doors.
4. MECHANICAL SYSTEM 4) Remove the mounting screw o from the rear of the feeding assembly, and remove the leaf spring !0. 5) Remove the two stepped screws !1, and remove the transfer/separation charging assembly electrode !2. 15 17 12 16 10 11 18 14 13 11 9 Figure 4-373 Figure 4-371 22 6) Remove the two screws !3 at the front and the rear, and remove the float pin !4; then, remove the feeding stay !5.
4. MECHANICAL SYSTEM 9) Remove the wire cleaning motor together with the support plate. 10)Remove the mounting screws @3 from the front and the rear (7 in total); then, remove the transfer/ separation charging assembly. 11)Remove the two mounting screws @4, and remove the guide plate @5; then, detach the feeding belt from the feeding assembly. 25 24 23 Figure 4-375a Figure 4-376 23 Figure 4-375b COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
4. MECHANICAL SYSTEM F. No. 2 Feeding Assembly 1. Removing the No. 2 Feeding Assembly from the Copier 1) Remove the rear right cover, rear upper left cover, and rear lower left cover. 2) Remove the fixing motor assembly. (p. 4-21) 3) Remove the fixing relay drive unit. (p. 4-28) 4) Remove the E-ring q, drive belt w, drive gear e, and hinge r. (Be careful not to lose the metal spacer between the hinge and the copier frame.) 4 2 1 6) Remove the fixing assembly and the duplexing unit from the copier. (pp.
4. MECHANICAL SYSTEM 2. Adjusting the Position of the No. 2 Feeding Assembly Paper Deflecting Plate M-size paper deflecting plate 9±0.5mm L-size paper deflecting plate 9±0.5mm 9±0.5mm Install the solenoid so that each paper deflecting plate is as shown in Figure 4-381 when the plungers of the S, M, and L paper deflecting plate drive solenoids are pushed in. S-size paper deflecting plate Figure 4-381 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
4. MECHANICAL SYSTEM 2. Removing the Feeding Roller G. Duplexing Unit 1. Removing the Duplexing Unit from the Copier 1) Turn OFF the power switch, and open the front doors; then, slide out the duplexing unit until it stops. 2) Remove the grip, and remove the two mounting screws; then, remove the duplexing unit front cover. 1) Open the front door, and slide out the duplexing unit assembly. 2) Remove the mounting screw q from the bottom of the duplexing unit, and remove the feeding roller assembly w.
4. MECHANICAL SYSTEM 3. Removing the Separation Roller 4. Removing the Re-Pick Up Feeding Roller 1) Slide out the duplexing unit from the copier. 2) Remove the three mounting screws, and remove the upper cover of the duplexing unit assembly. 3) Remove the two mounting screws, and remove the separation roller support w from the right side of the duplexing unit; then, while releasing the locking lever, remove the separation roller e.
4. MECHANICAL SYSTEM 5. Removing the Paper Jogging Guide Drive Motor 1) Remove the duplexing unit. (p. 4-52) 2) Remove the mounting screw q, and remove the motor cover w. 4) Remove the two mounting screws y, and remove the paper jogging guide drive motor u. 6 2 7 1 6 Figure 4-390 6. Removing the Re-Pick Up Drive Clutch Figure 4-388 3) Remove the two mounting screws e from the back of the duplexing unit; then, remove the connector cover r, and disconnect the connector t.
4. MECHANICAL SYSTEM 3) Disconnect the connector e, and loosen the two set screws r; then, while opening the duplexing unit upper cover, remove the clutch t. 8. Positioning the Re-Pick Up Releasing Solenoid Adjust so that the stroke of the solenoid is 3 ±0.5 mm when the shutter guide locking spring is in contact with the shutter guide. 3±0.5mm Shutter guide Shutter guide pressure spring 4 5 3 Figure 4-394 Figure 4-392 9. Adjusting the Re-Pick Up Separation Pressure 7.
4. MECHANICAL SYSTEM 10.Adjusting the Re-Pick Up Roller Stop Position 10 0˚ Direction of rotation ˚ 2.6mm Loosen the mounting screw, and adjust so that the stop position of the re-pick up roller is as A or B in Figure 4-396. Direction of rotation Direction of rotation Figure 4-396 11.Adjusting the Re-Pick Up Motor Tension Tighten the two screws while pulling the repick up motor in the direction of the arrow with a force of 500 g. 500g Figure 4-397 4-56 COPYRIGHT © 1996 CANON INC.
4. MECHANICAL SYSTEM H. Buffer Assembly 1. Construction of the Vertical Path Unit 5) Remove the mounting screw w and the E-ring e; then, remove the spring r used to suspend the vertical path unit while lifting the buffer assembly. 6) Disconnect the three connectors t, and remove the three mounting screws y; keep the rear of the harness rail u lifted at the rear. 6 4 5 2 6 3 6 7 Figure 4-400 Figure 4-398 2.
4. MECHANICAL SYSTEM 9) Disconnect the connector under the CW/CCW rotation drive assembly; then, remove the buffer assembly while shifting it up. 4) Remove the E-ring o and the bushing !0; then, pull out the duplexing vertical path roller !1 together with the shaft. 3. Removing the Duplexing Vertical Path Roller 1) Remove the vertical path unit. (p. 4-57) 2) Remove the four mounting screws q (2 pcs. at front and rear), and remove the duplexing vertical path roller cover w.
4. MECHANICAL SYSTEM 5. Removing the Buffer Lower Feeding Roller 6. Removing the Delivery Roller 1) Remove the buffer rear lower cover. 2) Loosen the tension q at the rear, and remove the drive belt w; then, remove the E-ring e, drive gear r, parallel pin t, spacer y, E-ring u, and bearing i. 1) Remove the rear lower buffer cover. 2) Remove the mounting screw q, and remove the buffer assembly lamp w.
4. MECHANICAL SYSTEM 5) Remove the buffer assembly inside cover. 6) Remove the E-ring !0 and the bearing !1 from the front. 7) Remove the four mounting screws !2. 8) Remove the delivery roller !3. 10 11 12 11 13 10 12 10 11 Figure 4-410 4-60 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM IV. EXPOSURE SYSTEM A. Scanning Lamp Assembly 1. Removing the Scanning Lamp Assembly 1) Remove the two screws, and remove the upper left cover. 2) Remove the copyboard glass retainer, and remove the copyboard glass. 3) Remove the two face plates q, remove the five mounting screws; then, remove the white plate cover w and the white plate left cover e. 5) Remove the two mounting screws y, and remove the plate of the reflecting shade u.
4. MECHANICAL SYSTEM B. Standard White Plate Assembly 2. Removing the Thermal Switch 1. Removing the Standard White Plate 1) Remove the two fasten sleeves and the two mounting screws q, and remove the thermal fuse w. 1) Remove the upper left cover. 2) Remove the copyboard glass, and remove the copyboard glass. 3) Move the No. 1 mirror mount to the right until it stops.
4. MECHANICAL SYSTEM C. Pre-Exposure Lamp Assembly 1. Removing the Pre-Exposure Lamp Assembly 1) Remove the drum unit from the copier. (p. 4-64) 2) Remove the spring from the rear of the preexposure lamp assembly. 3) Remove the mounting screw q and disconnect the connector w at the front of the preexposure assembly; then, remove the preexposure lamp assembly. (Be careful not to damage the photosensitive drum.) 1 D. Blank Exposure Lamp Assembly 1.
4. MECHANICAL SYSTEM V. CHARGING ASSEMBLY 4) Disconnect the connector e from the toner level detection PCB, and disconnect the faston from the pole positioning plate. A. Photosensitive Drum 3 4 Red 1. Removing the Drum Unit 1) Open the front covers, and remove the process cover. 2) Remove the mounting screw q, and disconnect the three connectors w; then, open the LCD screen.
4. MECHANICAL SYSTEM 6) Turn the developing assembly releasing lever u counterclockwise to release the developing assembly from the photosensitive drum. 8) Remove the primary charging assembly and the pre-transfer charging assembly. (p. 4-71) 9) Remove the mounting screw !1, and remove the drum positioning block !2. 12 11 7 Figure 4-506a Figure 4-504 7) Remove the mounting screw i, and hook the blank exposure assembly o on the rail mount !0.
4. MECHANICAL SYSTEM 10)Slide out the duplexing unit. 11)Remove the two mounting screws !3 (W/washer, silver); then, hook a finger in the shaded area (Figure 4-507) of the front plate, and move the drum unit to the front until it stops. 3) Remove the two mounting screws w, and remove the drum stopper e. 3 13 2 Figure 4-509 13 4) Slide the photosensitive drum to the rear together with the bearing r and the gear t; then, lift it to remove.
4. MECHANICAL SYSTEM 3. Replacing the Drum Heater 4. Installing the Photosensitive Drum 1) Remove the photosensitive drum from the copier. 2) Remove the two mounting screws q, and remove the flange from the front. Install the photosensitive drum by reversing the steps used to remove it with the following in mind: a. The surface of the drum must be free of dirt and scratches. b. Install it so that the label on the inner side of the drum is toward the front.
4. MECHANICAL SYSTEM 5. Cleaning the Pre-Cleaning Exposure Cover 1) Remove the drum unit. (See p. 4-64.) 2) Remove the photosensitive unit. (See p. 4-66.) 3) Remove the screw q, and remove the mounting plate w. 6. Cleaning the Upper Transfer Guide 1) Remove the drum unit. (See p. 4-64.) 2) Remove the screw q (front, rear), and remove the positioning bush w (front, rear). q w Front q w Figure 4-514 Rear 3) Holding the right side of the upper transfer guide e, turn it in the direction of the arrow.
4. MECHANICAL SYSTEM 4) clean the upper transfer guide r. Drum unit r Front Figure 4-516 5) Install the upper transfer guide by reversing the steps used to remove it. 7. Cleaning the Photosensitive Drum • Check the images every 250,000 copies. Clean the photosensitive drum if uneven density is noted in the form of horizontal bands of halftone with the same noted on the drum. 1) Turn the pre-exposure lamp to release it. 2) Put about 0.2 to 0.
4. MECHANICAL SYSTEM B. Potential Sensor Assembly C. Primary Charging Assembly 1. Removing the Potential Sensor Assembly 1. Removing the Primary Charging Assembly 1) Remove the blank exposure lamp assembly from the copier. (p. 4-63) 2) Remove the two mounting screws q, and remove the potential sensor assembly from the blank exposure lamp together with the support plate. 1) Open the front doors. 2) Slide out the duplexing unit, and remove the process cover.
4. MECHANICAL SYSTEM D. Pre-Transfer Charging Assembly E. Transfer/Separation Charging Assembly 1. Removing the Pre-Transfer Charging Assembly 1. Removing the Transfer/Separation Charging Assembly 1) Open the front doors. 2) Slide out the duplexing unit, and remove the process cover. 3) Remove the mounting screw q, and pull out the pre-transfer charging assembly e. 1) Open the front door.
4. MECHANICAL SYSTEM F. Charging Wire 1. Outline As many as three charging assemblies (primary, pre-transfer, transfer/separation) are installed around the photosensitive drum. Use a charging wire of 0.06 mm in diameter for these charging assemblies. As a grid wire, use a 0.1mm-dia. stainless wire. 2. Removing the Wire Cleaner of the Primary Charging Wire 3.
4. MECHANICAL SYSTEM 6) Hook the charging wire on the charging wire positioner at the rear; then, hook the charging wire tension spring on the charging wire as shown, and twist it. 9) Install the cushion to the front of the charging assembly. (This does not apply to the primary charging assembly.) 10)Install the shielding plate (left, right). Caution: For other charging assemblies, install the lids (2 pcs.). Figure 4-524 7) Cut the excess end of the charging wire with a nipper.
4. MECHANICAL SYSTEM 3) Loosen the screw, and move it in the direction of the arrow; then, tighten it temporarily. Screws Figure 4-528 4) Free a length of about 5 cm from the charging wire reel (0.1mm-dia.), and form a loop at its end with a diameter of about 2 mm. Reference: To form a loop, wind the charging wire around a hex key once; then, turn the hex key three to four times, and twist the charging wire. 8) Cut the excess charging wire with a nipper. 9) Tighten the screw loosened in step 3).
4. MECHANICAL SYSTEM 5. Adjusting the Height of the Charging Wire Charging wire Range Height of the charging wire (mm) ± 1 mm Primary + _ + 1.5 7.5 _ 0 1 + _ + 1.5 7.5 _ 0 10 10 1 Pre-transfer No adjusting mechanism 10±0.3 Transfer 10±0.2 ± 2 mm *1 Separation + _ + _ No adjusting +0 +0 14.7 _ 14.7 _ 0.3 0.3 mechanism Figure 4-530 Reference: The height (position) of the primary and the transfer charging assembly may be adjusted by turning the screw found behind the charging assembly.
4. MECHANICAL SYSTEM VI. DEVELOPING ASSEMBLY A. Developing Assembly 4) Turn the developing assembly releasing lever u counterclockwise; then, remove the developing assembly from the photosensitive drum slowly. 1 3 2 7 Caution: The NP6085’s developing assembly is not equipped with a developing cylinder protection cover. Take extra care whenever you have removed the developing assembly so as not to damage the developing cylinder. 1.
4. MECHANICAL SYSTEM 2. Installing the Developing Assembly to the Copier Install the developing assembly to the copier by reversing the steps used to remove it with the following in mind: q Clean the developing assembly rail before inserting the developing assembly into the copier. w When inserting the developing assembly into the copier, be sure that the dust-proofing shutter is opened in the direction of the arrow (Figure 4-603). 3.
4. MECHANICAL SYSTEM 5) Put a sheet of copy paper between the blade and the developing cylinder. 6) Remove the four mounting screws r, and remove the blade mount together with the blade. At this time, take care so that the blade will not hit the developing cylinder. 8) Remove the two mounting screws !0 from the rear of the developing assembly, and remove the gear support plate !1. 10 4 4 11 Figure 4-608 9) Remove the gear !2, and remove the gear !3; then, remove the bearing from the gear !3.
4. MECHANICAL SYSTEM 10)Remove the grip ring !4, gear !5, E-ring !7, gear !8, grip ring @0, plastic film @1, roll @2, and spacer @3 in the order indicated in Figure 4610 from the cylinder shaft at the rear. Caution: Take care not to drop the parallel pins !6/ !9 from the gear !5/ !8. 23 14 15 16 17 18 19 20 21 22 B. Hopper Assembly 1. Removing the Hopper Assembly from the Copier 1) Remove the developing assembly from the copier. (p. 4-76) 2) Open the RDF, and shift it upright.
4. MECHANICAL SYSTEM VII. DRUM CLEANING ASSEMBLY 4) Remove the mounting screw e, and remove the roller r; then, remove the leaf spring t. 4 A. Drum Cleaner 1. Construction Cleaning blade 3 5 Photosensitive drum Figure 4-703 5) Remove the cleaning bladesupport plate y from the cleaning blade assembly. y Separation claw Figure 4-701 2. Removing the Cleaner Blade 1) Slide out the drum unit from the copier. (p. 4-64) 2) Remove the pre-exposure lamp assembly from the drum unit. (p.
4. MECHANICAL SYSTEM 4. Installing the Side Seal 3. Installing the Cleaning Blade Install the cleaning blade by reversing the steps used to remove it with the following in mind. (Be sure to fix the cleaning blade in place while butting it against the rear.) 1) Check to make sure that there is no gap on both ends of the cleaning blade, and push the center of the blade with a finger. Reference Side seal Figure 4-708 0m m Be sure that the side seal does not extend into the inside of the cleaner housing.
4. MECHANICAL SYSTEM B. Separation Claw Drive Assembly C. Waste Toner Feeding Assembly 1. Removing the Separation Claw Drive Assembly from the Drum Unit 1) Slide out the drum unit from the copier. (p. 4-64) 2) Remove the two mounting screws q, and remove the harness guide. 3) Remove the four mounting screws w, and remove the mounting plate e. 1) Remove the drum unit from the copier. (p. 4-64) 2) Remove the two mounting screws q, and remove the separation claw drive assembly. Caution: 1.
4. MECHANICAL SYSTEM D. Waste Toner Receptacle 1) Slide out the both of front trays. 2) Remove the inside left cover. 3) Pull out the waste toner receptacle from front side. Caution: In case of installing, the waste toner receptacle should be pushed up to the end. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-83 Download Service Manual and Resetter Printer at http://printer1.blogspot.
4. MECHANICAL SYSTEM VIII. FIXING SYSTEM 3. Removing the Fixing Assembly from the Copier A. Fixing Assembly 1) Turn OFF the power switch, and slide out the fixing assembly to the front until it stops; then, remove the fixing assembly cover. 2) Remove the mounting screw and the fixing assembly stopper q; then, pull the fixing assembly to the front, and lift it to remove. 1. Construction 1 Figure 4-802 Figure 4-800 Caution: 2.
4. MECHANICAL SYSTEM 4. Positioning the Fixing Assembly Locking Solenoid Slide out the fixing assembly, and remove the process cover to make adjustments. Adjust so that the dimension b of the solenoid plunger is 6.6 ±0.2 mm when the arm is butted against the stopper shaft (Figure 4-804). 4) Remove the screw e at the front and the screw r at the rear; then, remove the lower separation assembly. Adjusting screws Arm Butted. b b=6.6±0.2 3 Stopper shaft Figure 4-804 Front 5.
4. MECHANICAL SYSTEM 5) Remove the lower roller from the fixing assembly, and remove the bearing (front, rear) from the lower roller. 1 Caution: Keep the following in mind when closing the upper roller: 1.Close it slowly. 2.Close it while pushing the reciprocating lever at the front of the fixing assembly in the direction of the arrow.
4. MECHANICAL SYSTEM 7. Installing the Heater Install the heater by reversing the steps used to remove it with the following in mind: q Do not touch the surface of the heater. w For both heaters, install them so that the side with the longer heater harness is toward the front. e Install the longer heater to the right and the shorter heater to the left while viewing from the front of the fixing assembly. 4) Remove the grip ring w at the rear of the upper roller, and remove the gear e. 2 8.
4. MECHANICAL SYSTEM 10.Removing the Thermistor 4 1) Remove the fixing assembly from the copier. 2) Remove the mounting screw, and remove the fixing assembly upper cover. 3) Remove the two screws q, and open the cleaning unit. 5 1 4 Figure 4-814 Figure 4-816 6) Release the locking arm, and open the upper roller assembly. 7) Remove the rear bearing of the upper roller from the side plate, and remove the upper roller while paying attention to the thermistor, thermal switch, and upper separation claw.
4. MECHANICAL SYSTEM 11.Removing the Upper Separation Claw 12.Removing the Lower Separation Claw 1) Remove the fixing assembly from the copier. 2) Push the upper separation claw unit release button, and open the upper separation claw unit. 3) Remove the spring q, and remove the upper separation claw w. 1) Remove the fixing assembly from the copier. 2) Turn the locking arm to release the roller; then, open the upper roller assembly.
4. MECHANICAL SYSTEM 13.Replacing the Fixing Cleaning Belt a. Removing the Fixing Cleaning Belt Cleaning belt feeding shaft (right) Cleaning belt feeding shaft (left) Cleaning belt take-up roller 4) Remove the two mounting screws w, and close the cleaning belt unit while keeping the cleaning belt feeding roller (right) e opening in the direction of the arrow.
4. MECHANICAL SYSTEM 6) Open the cleaning belt unit once again, and open the cleaning belt feeding roller (right). 7) Lead the cleaning belt feeding roller y through the two cleaning belt feeding rollers t; then, close the cleaning belt unit after closing the cleaning belt feeding roller (right). 5 10)Open the cleaning belt unit, and open cleaning belt feeding roller (right).
4. MECHANICAL SYSTEM 1) Open the cleaning belt unit, and open the cleaning belt feeding roller (right) w. 2) Attach the cleaning belt on the cleaning belt feeding roller (right) w, and up the cleaning belt take-up roller e through the two cleaning belt feeding rollers. 4) Close the cleaning belt feeding roller (right) and the cleaning belt unit.
4. MECHANICAL SYSTEM 8) Attach the cleaning belt to the cleaning belt feeding roller (left), and lead the cleaning belt take-up roller !1 through the gap between the two cleaning belt feeding rollers. 11 12)Lift the cleaning belt drive lever !2 several times with fingers to remove the slack. (Check with the naked eye.) 12 10 Figure 4-833 9) Set the cleaning belt take-up roller !1 to the bushing at the rear; then, slide the shaft to the rear, and set the roller to the bushing at the front.
4. MECHANICAL SYSTEM 15.Adjusting the Nip (tightening the pressure adjusting hex nut) Perform the following whenever you have replaced the upper roller or the lower roller or if fixing faults occur. If the roller is cold, wait 15 min after the end of the wait period and make 20 copies before taking measurements. 1) Open the RDF, and select ‘NIP’ in service mode ( ✽ 3 ✽ ). 2) Press the OK key on the LCD control panel screen. (Paper will be discharged automatically.
4. MECHANICAL SYSTEM IX. ELECTRICAL SYSTEM 5) Remove the five mounting screws q, and remove the power supply assembly w. 1 A. Power Supply Assembly 1. Removing the DC Controller PCB 1) Disconnect the connector of the paper deck. 2) Remove the rear upper right cover and the rear right cover. 3) Disconnect the connectors, and remove the cable from the wire saddle. 4) Remove the three mounting screws q (silver), and remove the DC controller PCB w while moving it upward. 2 1 1 Figure 4-902 3.
4. MECHANICAL SYSTEM 5) Remove the three mounting screws e, and remove the RDF support plate cover r. 3 4 8) Remove the two screws i, and remove the high-voltage transformer assembly support plate u. 3 i i Figure 4-904 6) Remove the exhaust fan. 7) Remove the two screws y, and remove the harness guide plate t. t u Figure 4-906 9) Remove the six high-voltage cables o, disconnect the three connectors!0, and remove the three mounting screws !1; then, remove the high-voltage transformer assembly !2.
4. MECHANICAL SYSTEM X. C.F.F. EXTERNALS B. Feeding Key A. External Covers 1) Remove the two mounting screws w of the front cover q. 1 2 2 4 3 5 q Arm w Rear cover e Upper cover r Right cover t Front cover 1 Figure 4-1001 Figure 4-1003 1. Removing the Upper Cover 1) Slide the releasing knob q in the direction of the arrow (Figure 4-1002), and remove the upper cover w. 2) Open the front cover q as shown, and disconnect the connector e. 3 2 1 1 Figure 4-1002 COPYRIGHT © 1996 CANON INC.
4. MECHANICAL SYSTEM C. Exhaust Fan 1) Remove the three mounting screws w, and remove the original guide plate q. 3) Remove the right cover. (3 mounting screws from face u; 2 mounting screws from back i) Caution: • The harness of the VR is attached; take care. • The screws u are tightened with the grounding wire; pay attention to avoid turning and warping the grounding plate. 7 2 1 7 2 2 7 4) As necessary, cut the harness band used to keep the exhaust fan harness together.
4. MECHANICAL SYSTEM XI. C.F.F. ILLUMINATING SYSTEM 4) Remove the mounting screw t from the front and the stepped screw y from the rear; then, remove the reflecting plate u. A. Illuminating System 1. Removing the C.F.F. Lamp 1) Remove the upper cover. 2) Remove the two mounting screws q, and open the platen glass mount w. 1 1 2 5 7 6 Figure 4-1103 5) Push the lamp electrode rear i to remove the lamp o. Figure 4-1101 9 8 3) Remove the glass support plate e and the thermal switch r.
4. MECHANICAL SYSTEM XII.C.F.F. DRIVE/ ELECTRICAL SYSTEM 4) Remove the mounting screw y, and remove the arm u. 6 6 7 A. C.F.F. Controller PCB 1) Remove the original stacking tray. 2) Remove the three mounting screws q, w, and e; then, remove the grip cover r. 4 6 6 Figure 4-1203 1 2 3 5) Disconnect the connector of the C.F.F. controller PCB i; then, remove the PCB. 8 Figure 4-1201 Caution: The screw e is a self-tapping screw; take care not to tighten it excessively.
4. MECHANICAL SYSTEM B. C.F.F. Motor 5) Remove the drive belt u. 7 1) Disconnect the connector of the C.F.F. controller PCB. 2) Remove the rear cover. 3) Mark the position of the connector mount q with a scribe, and remove the screws w e; then, loosen the screw r. 2 1 Figure 4-1207 6) Remove the mounting screw i, and remove the C.F.F. motor o. 4 3 8 8 Figure 4-1205 4) Slide the connector mount as indicated; then, using a hex wrench t, remove the clock plate y.
4. MECHANICAL SYSTEM C. Replacing the ROM 1) Remove the original stacking tray. 2) Remove the mounting screw q from the bottom of the C.F.F., and remove the ROM cover w. 1 2 Figure 4-1209 3) Replace the ROM e while being careful not to damage the elements nearby. 3 Figure 4-1210 4-102 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
CHAPTER 5 INSTALLATION I. II. III. IV. SELECTING THE SITE .........................5-1 UNPACKING AND INSTALLATION .......5-2 RELOCATING THE MACHINE ............5-30 INSTALLING THE CONTROL CARD V ....5-31 COPYRIGHT © 1996 CANON INC. V. VI. VII. REMOTE DIAGNOSTIC DEVICE II .......5-34 INSTALLING THE COPY DATA CONTROLLER-A1...............................5-41 INSTALLING THE CARD READER-A1.....5-51 CANON NP6085 REV.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
5. INSTALLATION I. SELECTING THE SITE 2.1 m (7ft) 18 cm (7.1 inch) Make the following considerations when selecting the site; if possible, pay a visit to the user’s before the delivery of the machine: 1. The site must provide apower outlet exclusively for the machine and it must be capable of supplying the rated power (±10%). In North America, Check the power voltage. If the power voltage is 240V, be sure to replace the heater.
5. INSTALLATION II. UNPACKING AND INSTALLATION When a piece of metal is brought in from a cold to warm place, droplets of water tend to form on its surface. This phenomenon is called condensation, and a copier suffering from condensation may generate blank copies. If the machine is to be installed after bring brought from a cold to warm place, leave it at the site of installation for one hour or more without unpacking; start the work after the machine has become used to the room temperature. A.
5. INSTALLATION Step Work 7 Pull out the four grips, and install the grip assembly cover (accessory) to the front left and rear left and front right with screws (accessory). COPYRIGHT © 1996 CANON INC. Checks/remarks CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-3 Download Service Manual and Resetter Printer at http://printer1.blogspot.
5. INSTALLATION B. Installing the Lens/Scanner System Step Work 1 Remove the packing tape and the DO NOT LIFT label from the machine. 2 Lift the grip of the RDF unit to open. 3 Remove the two screws, and remove the copyboard glass retainer (right) and the copyboard glass. 4 Remove the lens metal fixing. (Keep the metal fixing for possible relocation of the machine.) Checks/remarks Remove the protection tape for the size index and the protection material for the copyboard cover.
5. INSTALLATION C. Installing the Fixing Assembly Step Work 1 Open the left and right front door; then, remove the two screws, and remove the fixing assembly cover. 2 Push down the fixing assembly releasing lever, and slide out the fixing assembly. Checks/remarks Fixing assembly releasing lever 3 Remove the screw, and remove the fixing assembly stopper; then, while pushing down the releasing lever, pull it slightly to the front.
5. INSTALLATION Step Work 5 To change the voltage rating of the power supply from 208 to 240V for a North American model, perform the following; for 208V North American model and other models, go to step 13. Remove the fastons from the heaters at the front and the rear (total of 6). Checks/remarks Front; Rear; 6 Remove the two mounting screws, and remove the heater guide from the gear while taking care not to damage the heater.
5. INSTALLATION Step Work 8 Pull out the heater to the rear while being careful not to damage it. 9 Insert the drum heater for the 240V model (FH7-4510 230V 1600W) while being careful not to damage the heater. 10 Install the two heater support plates at the front using four screws. 11 Install the rear heater with two mounting screws. Take care not to damage the heater. 12 Connect the fastons of the heaters (front, rear; total of 6). COPYRIGHT © 1996 CANON INC. Checks/remarks •.
5. INSTALLATION Step Work 13 Remove the screw from the front of the fixing assembly upper cover, and remove the fixing assembly upper cover. 14 Lift the cleaning belt drive lever with fingers several times to remove the slack. After checking to make sure that the slack has been removed, install the fixing assembly cover with a screw. 15 Push the top of the fixing assembly, and set the locking lever to notch 2 at the front and the rear.
5. INSTALLATION D. Installing the Developing Assembly Step Work 1 Pull out the grip of the duplexing unit until it stops. (Perform the work that follows with the duplexing unit in this position.) 2 Lift the feeding assembly, and insert a screwdriver or the like into the hole indicated, thereby keeping the feeding assembly in place at middle position. 3 Checks/remarks Remove the packing material.
5. INSTALLATION Step Work 5 Release the feeding guide releasing lever; then, pull out the drum separation claw releasing plate in upper left direction to remove. Keep the drum separation claw releasing plate for later use. Checks/remarks Drum separation claw releasing plate Feeding guide releasing lever Process cover 6 Remove the three screws, and remove the process cover. Duplexing unit 7 Remove the four screws, and remove the developing duct and transfer charging dust-proofing fan.
5. INSTALLATION Checks/remarks Step Work 9 Remove the screw, and open the LCD unit to the left; then, disconnect the two connectors. Connectors LCD unit Screw 10 Remove the screw, and remove the primary charging assembly. Screw 11 To change the voltage rating of the power supply from 208 to 240V for a North American model, perform the following; for 208V Noth American model and other models, go to step 31. Release the blanking exposure unit (1 screw).
5. INSTALLATION Step Work 12 Remove the drum positioning block (1 screw; you will be using the block later). Checks/remarks Drum positioning block Be sure to hold the nob when turning the mounting screw on the drum positioning block. nob 13 Remove the two drum unit fixing screws (silver); then, hook fingers on the shaded area (figure) of the drum unit front plate, and remove the drum unit to the front. Screw Check to make sure that the duplexing unit has been slid out.
5. INSTALLATION Checks/remarks Step Work 14 Turn the pre-exposure lamp in the direction of the arrow, thereby releasing from the photosensitive drum. 15 Remove the two mounting screws, and remove the drum stopper. Pre-exposure lamp assembly Drum stopper Screws 16 Slide the photosensitive drum to the rear together with the bearing and the gear; then, lift it to remove. Wrap the photosensitive drum with copy paper to prevent exposure to natural light.
5. INSTALLATION Step Work 18 Remove the two mounting screws, and remove the flange from the front. Checks/remarks Flange Screws 19 Pull the flange at the rear, and remove the drum heater assembly from the photosensitive drum; then, disconnect the connector, and remove the drum heater. 20 Connect the connector of the drum heater assembly for 240V (FH74506 230V 160W), and install the drum heater for 240V (FH7-4506 230V 160W); then, insert the flange at the rear.
5. INSTALLATION Checks/remarks Step Work 24 Install the photosensitive drum to the drum unit. Photosensitive drum Keep it parallel. Lift the rear bearing slightly when pushing in. Push it toward the rear so that the collar of the bearing will butt against the front side plate of the drum unit. Gear A Slide it to the rear while turning slowly so that this gear will engage with the gear A.
5. INSTALLATION Step Work 25 Install the drum stopper, and fix it in position with two screws. Lead the harness through the harness retainer. 26 Return the pre-exposure lamp to its initial position, and insert the drum unit into the machine slowly while pressing the two areas of the drum unit where screws are used. 27 Fix the drum unit with two screws. 28 Turn the drum flange gear in the direction of drum rotation so that the groove of the drum flange shaft and the groove of the drum shaft match.
5. INSTALLATION Checks/remarks Step Work 31 Remove the screw, and disconnect the connector; then, remove the pre-transfer charging assembly. 32 Clean the feeding assembly, and lift the feeding assembly with a screwdriver once again. 33 Clean the primary charging assembly, pre-transfer charging assembly, and transfer/separation charging assembly; then, install them. Connect the connectors of the charging assemblies securely. 34 Connect the two connectors.
5. INSTALLATION Step Work 39 Install the developing duct with four screws. 40 Turn the locking lever clockwise to force the developing assembly against the photosensitive drum. 41 Fix the LCD unit in place with a screw. Checks/remarks Be sure to tighten the screw so that the grounding wire is kept in place by the screw. E. Installing the Waste Toner Receptacle Step Work 1 Open the front left door, and slide out the both of front tray.
5. INSTALLATION G. Switching the Paper Deck Size Checks/remarks Step Work 1 Remove the screw, and remove the roller cover metal plate. 2 Pull out the releasing spacer downward, and install the roller cover metal plate once again. Screw Releasing spacer 3 For B4/B5 paper, shift up the front and rear face plates, and insert the sub tray. For LGL/LTR-R paper, remove the face plates, and insert the sub tray. Sub tray COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
5. INSTALLATION Step Work 4 Match the positions of the front and rear size partitions with the size of paper; if face plates are used, arrange them so that they match the positions of the partitions. Checks/remarks Screws Partitions Face plates 5 Remove the paper deck rear cover. For B4/LGL paper, perform this step. Skip the step if B5/LTR-R paper is used. Screws Screws Paper deck rear cover 5-20 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
5. INSTALLATION H. Installing the Paper Deck Cover Step Work Checks/remarks 1 Install the hinge metal fixings to the paper deck position at two locations with four screws. Screws Screws 2 Install the paper deck cover to the copier's hinge metal fixings with eight screws. Screws Screws Screws Screws 3 Install the hinge cover, and fix it in place with two screws; then, close the cover. Screw Hinge cover Screw COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
5. INSTALLATION Step Work 4 Keep the multifeeder tray upright; insert the shaft at the rear of the multifeeder tray into its corresponding shaft hole and the shaft at the front into its corresponding hole, and then shift it to the right. Remove the releasing spacer from the left of the multifeeder tray.
5. INSTALLATION Step Work 6 Lift the lifter plate as high as possible. Checks/remarks Perform this step for B4/LGL; skip this step for B5/LTR-R. 7 Change the position of the microswitch used to detect the lifter lower limit. (Take care so that the harness of the microswitch will not become trapped on the chain.) Install the microswitch here. Perform this step for B4/LGL; skip this step for B5/LTR. 8 Install the paper deck rear cover. Perform this step for B4/LGL; skip this step for B5/LTR-R.
5. INSTALLATION I. Supplying Toner Step Work 1 Open the hopper top cover. 2 Shake the toner bottle ten times or more. 3 Open the toner supply cover, and fit the boss at the tip of the toner bottle into the groove of the toner supply mouth; then, slide the bottle to the rear. This will lock the toner bottle to the toner supply mouth. 4 Hold the slide tab (black) on the copier's toner box found at the front of the toner supply mouth, pull the slide to the front.
5. INSTALLATION Step Work 5 Pull the shutter on the toner bottle side to the front. Toner starts to pour from the toner bottle to the hopper; tap the toner bottle lightly to make sure all toner has poured out. 6 Hold the shutter on the toner bottle, and push it to its rear position. 7 Push the slide tab of the copier's toner box up as far as the ▲ marking. • A click should be heard, indicating that the toner bottle has been released. 8 Pull the toner bottle in rear upward direction to remove.
5. INSTALLATION J. Checking Images and Operations/Setting User Mode Step Work 1 Connect the connector of the RDF to the copier. 2 Connect the power plug to the power outlet, and insert the door switch actuator into the door switch assembly of the front door. 3 Turn ON the main switch. 4 Press the service switch (SW921). 5 Select 'TRAY 4K' in service mode ( ✽ 5 ✽ ), and set the paper size for each tray.
5. INSTALLATION Checks/remarks Step Work 9 Attach the cassette size label to the cassette size plate to suit the size of paper on each tray; then, slide in the cassette size plate into the upper/lower front tray. 10 Attach the Jam Removal label to the duplexing unit, and attach the Warning label to the upper/lower front tray. 11 Push in the trays into the copier. 12 Stack copy paper on each tray, and close the tray. 13 If you are not installing the sorter, install the copy tray to the copier.
5. INSTALLATION Step Work Checks/remarks 15 Place the Test Sheet on the copyboard, and check the copy images. At times, toner may drop from the drum separation claw, soiling the first ten or so copies. Soiling should stop as more copies are made. •.Check to make sure that no abnormal sound is heard. •.Check copy images for each default reproduction ratio. •.Check to make sure that as many copies as specified are made. •.
5. INSTALLATION Checks/remarks Step Work 20 Set the user's preferences in user mode as necessary. For user mode, see the Operator's Manual. In North America, at time of shipment, the copier is set to 'one-sided to two-sided' copying; check with the user to make necessary changes. To select 'one -sided to one-sided' copying, perform the following; 1) Start service mode ( ✽ 5 ✽ ), and select '2 SIDE_SL'. 2) Enter '0' using the keypad. 3) Press the Reset key to end service mode.
5. INSTALLATION III. RELOCATING THE MACHINE Perform the following if you need to relocate the machine by truck or other means of transportation. Step Work Checks/remarks 1 Make a copy in Direct. 2 Remove all copy paper from the front trays and paper deck. 3 Turn OFF the power switch, and disconnect the power plug from the power outlet. Fix the lens in place with its metal fixing. Check to make sure that the lens will not move. 4 Remove the left cover, and move the No.
5. INSTALLATION IV. INSTALLING THE CONTROL CARD V 1) 2) 3) 4) 6) Remove the screw from the face plate t. t Remove the magnet plate. Remove the control panel. Remove the control card inlet face plate. Remove the six screws q, and remove the upper front cover. Figure 5-7 q Figure 5-5 5) Remove the seven screws q, and remove the two screws e used to fix the grounding wire in place; then, remove the wire saddle r, and remove the metal plate.
5. INSTALLATION Further, check that the connector o for the printer is centered over the hole. 14)Connect the 4P connector !2 of the Control Card V and the 4P connector !3 of the copier. !3 !2 !1 o Harness retainers Figure 5-9 Figure 5-11 10)Install the grounding wire !0 of the Control Card V where indicated. !0 15)Remove the protection sheet from the control panel guide plate of the Control Card V, and put the plastic sheet !4 over the hole (display hole of the Control Card V) in the control panel.
5. INSTALLATION 16)Attach the control panel guide plate !5 to the copier’s control panel. !5 Figure 5-13 17)Install the control panel to the copier. 18)Attach the memory record sheet and the transparent sheet. 19)Turn ON the copier’s power switch, and check the operation of the Control Card V. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-33 Download Service Manual and Resetter Printer at http://printer1.blogspot.
5. INSTALLATION V. REMOTE DIAGNOSTIC DEVICE II 2) Connect the connector t of the power supply unit to the connector y of the device. y Observe the following when installing the device to the copier: 1. Follow the applicable laws of the respective country. 2. Check to make sure that the copier has been properly installed before starting the work. 3. Keep the copier’s power plug disconnected during the work. 4. Identify the screws by type (length, diameter) and location. 5.
5. INSTALLATION 4) Connect the copier’s connector o and the cable !0 of the device. 6) Remove the slack from the cable between the copier and the device; keep the excess length of the cable on the copier, and fix it in place with the harness band !4. o !4 !0 Figure 5-19 5) Fix the device to the copier’s rear cover with four screws. (Use the screws that came with the copier.
5. INSTALLATION 8) If the IC6 !6 is installed to the PCB of the device, shift bit 7 of the DIP switch !7 (SW2) to ON; otherwise, shift it to OFF. Note: If the ROM (IC6) !6 is not installed, you need not install it. Note: You must shift bit 7 of the DIP switch !7 (SW2) to ON when installing or replacing the ROM (IC6) !6 to upgrade the device.
5. INSTALLATION Switch notation Setting Description SW3-1 SW3-1 SW3-1 See right. SW3-2 SW3-3 Function OFF OFF Sets the modem signal transmission level to -16 dBm. ON OFF Sets the modem signal transmission level to -14 dBm. OFF ON Sets the modem signal transmission level to -18 dBm. ON ON Sets the modem signal transmission level to -10 dBm. OFF Keep it OFF at all times. ON Use it to select push pulse for the line circuit of the device.
@0 @0 @2 @2 LED1 LED2 LED3 2 LED1 LED2 LED3 2 6 BAT1 SW4 @1 IC6 1 1 1 SW3 SW2 6 BAT1 1 1 LED5 LED6 LED4 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 5. INSTALLATION 2 CN4 SW1 1 SW3 SW2 LED5 LED6 LED4 SW4 @1 IC6 2 CN4 SW1 CN3 CN2 CN3 CN2 Figure 5-25 12)After checking that LED5 @2 (red) has turned ON, set the bits of the DIP switch @0 (SW2) on the PCB of the device as indicated; then, press the push switch (SW4) so that LED5 @2 (red) turns OFF, indicating that RAM clear has ended.
5. INSTALLATION 14)Connect the device to the telephone line. If the device is to be connected on its own, connect the modular jack cable to the connector @4 (LINE) of the device. If the extension function of the device is to be used, use the connector @5 (TEL) of the device for the existing telephone or the fax machine and use the connector @6 (LINE) for connection to the telephone line.
5. INSTALLATION 18)Check to make sure that communication between the copier and the device is normal. Connect the copier’s power plug, and check to make sure that LED2 @9 (orange) flashes. 20)Attach the switch settings label on the top cover of the device, and record all switch settings.
5. INSTALLATION VI. INSTALLING THE COPY DATA CONTROLLER-A1 q w w A. Setting the Copy Data Controller-A1 1) Remove the two screws w, and remove the top cover of the Copy Data Controller-A1. Figure 5-33 SW1 Bit Setting 1~3 OFF For normal operation mode. 4 ON For IPC communication. NP6085, CLC700/800, NP6750, NP6016, GP55 Series OFF For serial communication. NP6030, NP6060, NP8530, NP9800 ON For using a central control device. Needs the Copy Data Interface Board-B1.
5. INSTALLATION 3) Set the jumper connectors (JA1, JA2, JB1, JB2) on the Copy Data Controller-A1 to suit the needs of the user. LED1 LED2 LED3 SW2 SW3 SRAM LED4 LED5 LED6 EPROM 2) Set the bits of the DIP switches (SW1, SW5) on the Copy Data Controller-A1 to suit the needs of the user. 2-1) Shift bit 4 of the DIP switch (SW1) to ON. 2-2) If group control is wanted, shift bit 2 of the DIP switch (SW5) to suit the control paper size. Shift it to OFF for AB-configured papers (A3, A4, B4, B5).
5. INSTALLATION 4) If you are using the Card Reader-A1, connect the Card Reader-A1 relay cable to J4 (9P) of the Copy Data Controller-A1. J4 Card Reader-A1 relay cable Figure 5-37 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-43 Download Service Manual and Resetter Printer at http://printer1.blogspot.
5. INSTALLATION 3) Fix the Copy Data Controller-A1 to the rear upper left cover with four screws u. B. Installing to the Copier 1) Remove the four screws w, and remove the face plate q of the copier’s rear cover. w w u u q Figure 5-38 Figure 5-40 2) Connect the 8P connector of the copier and the Copy Data Controller-A1 cable y. t y Figure 5-39 5-44 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
5. INSTALLATION LED2 LED3 LED1 LED2 LED3 SW2 SW3 LED4 LED5 LED6 SRAM 1) If you are not connecting the Communication Control Board-A1 or the Copy Data Interface Board-B1*, go to step 1. You do not need the Power Supply-A1. Connect the connector q of the Power Supply-A1 to the connector w of the Copy Data Controller-A1 securely as shown. Check to make sure that the cord is in the groove of the board.
5. INSTALLATION 5) If group control is not wanted, go to step 11). Set the method of input, method of control, and size of paper to suit the needs of the user. Shift bit 3 of the DIP switch of the Copy Data Controller-A1 to ON. 7) Press the switch (SW2) on the Copy Data Controller-A1 to start service mode.
5. INSTALLATION Note: 1.If bit 4 of the DIP switch of the Copy Data Controller-A1 is shifted to OFF, the notation will be as follows to indicate that group control is not done: LED1 LED2 LED3 LED1 LED2 LED3 SW2 SW3 LED4 LED5 LED6 JA1 JB2 LED5 JA2 JB1 Figure 5-48 6 2.If the copier’s memory is used for ID No. control, the existing ID Nos. may be used for the Copy Data Controller-A1. Work as follows: ■ Using Existing ID Nos. a.
5. INSTALLATION 9) Set the method of control. 9-1) Use the Numeric Keypad-A1 to select the method of control. Use and so that FORMAT= 1 is indicated. 9-2) Set the control method number as follows to suit the needs of the user. (The initial setting is ‘1’.) Number No. of groups Paper size Mode 1 3000 5 2 1000 5 One-sided/two-sided 3 1000 5 Mono/2-color/full color Table 5-8 9-3) To set ‘3’ as the control method number, 1 FORMAT= 1 is indicated.
5. INSTALLATION 11-4) Press the switch (SW2). Size Code B5 FOOLS A4 B4 A3 U SMALL (US) STMT U LARGE (UL) LTR LGL 11 X 17 A5 AFOOLS A6 FOLIO COMPUTER U SMALL 2 1 2 3 5 7 8 9 10 11 13 15 17 18 19 21 23 24 Post card U LARGE 2 GLTR 10 X 8 GLGL KLGL OFFICIO EOFFICIO AOFFICIO BOFFICIO ALTR ALGL 12 X 18 B3 A2 17 X 22 18 X 24 25 26 27 28 29 33 35 36 37 38 39 41 48 49 50 51 52 SW2 LED1 LED2 LED3 t H g J v Code SW2 SW3 LED4 LED5 LED6 SRAM Size EPROM 10-3)See the conversion table.
5. INSTALLATION 13)Fix the top cover of the Copy Data ControllerA1 with two screws 2. (Make sure that the cable of the power supply unit is fixed in place to the cable guide inside the Copy Data Controller-A1 and is not trapped by the top cover.) 14)As necessary, connect the Control Card Printer A-1 to the connector J4 of the Copy Data Controller-A1. (Use a relay cable if necessary.) IF off-line control is planned, connect it to the RS232C I/F connector of Copy Data Controller-A1.
5. INSTALLATION Caution: You must have the Copy Data ControllerA1 to install the Card Reader-A1 to the copier. 2) Set the DIP switches (SW1, SW5) of the Copy Data Controller-A1 to suit the needs of the user. 2-1) Shift bit 4 of the DIP switch (SW1) to ON. 2-2) For group control, set bit 2 of the DIP switch (SW5) to suit the control paper size. For AB-configured papers (A3, A4, B4, B5), to OFF. For inch-configured papers (LDR, LTR, LGL, STMT), to ON. LED1 LED2 LED3 A.
5. INSTALLATION 3) Set the jumper connectors (JA1, JA2, JB1, JB2) on the Copy Data Control-A1 to suit the needs of the user. 4) Connect the Card Reader-A1 relay cable r to the 9P connector (J4) e of the Copy Data Controller-A1.
5. INSTALLATION B. Installation to the Copier Caution: Observe the following when installing the Card Reader-A1 to the copier: 1.Make sure that the copier has been properly installed. 2.Keep the copier’s power plug disconnected for the work. If the Power Supply-A1 is connected to the Copy Data Controller-A1, disconnect the Power Supply-A1 from the power outlet. 3.Identify the screws by type (length, diameter) and location.
5. INSTALLATION 7) Fix the Card Reader-A1 in place on the control panel with four screws y. Check to make sure that the stickers indicated by arrows are in view and are correctly oriented. At this time, insert a card u into the Card Reader-A1, and fix the Card Reader-A1 in place where the card may be slid in and out smoothly. y u 9) Connect the 9P connector !0 of the Card Reader-A1 and the 9P connector !1 of the copier. !1 y !0 Harness retainers Figure 5-67 10)Install the control panel to the copier.
5. INSTALLATION C. Connecting to the Copy Data Controller-A1 D. Checking the Operations For how to check the operations, see p. 5-45. 1) Remove the four screws q, and remove the Copy Data Controller-A1. q q Figure 5-68 2) Connect the 8P connector w of the copier and the relay cable e of the Card Reader-A1. w e Figure 5-69 3) Fix the Copy Data Controller-A1 to the mounting with four screws. COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
CHAPTER 6 MAINTENANCE AND INSPECTION I. II. PERIODICALLY REPLACED PARTS ....6-1 CONSUMABLES AND DURABLES ......6-2 COPYRIGHT © 1996 CANON INC. III. IV. SCHEDULED SERVICING....................6-4 SCHEDULED SERVICING CHART ......6-6 CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON) Download Service Manual and Resetter Printer at http://printer1.blogspot.
Download Service Manual and Resetter Printer at http://printer1.blogspot.
6. MAINTENANCE AND INSPECTION I. PERIODICALLY REPLACED PARTS Some parts of the NP6085 must be replaced on a periodical basis regardless of the presence/absence of damage. Plan replacement so that it coincides with a scheduled servicing. As of end of June 1996 No. Part Part No.
6. MAINTENANCE AND INSPECTION II. CONSUMABLES AND DURABLES Some parts of the NP6085 may have to be replaced once or more over the period of warranty. Replace them as necessary. A. Copier As of end of June 1996 No. 1 Part Scanner lamp Part No. Q'ty Life Remarks FH7-3287-000 1 1,250,000 100V FH7-3288-000 1 1,250,000 208/220/240V 2 Separation roller (front tray/paper deck) FB2-7777-000 3 1,250,000 Actual copies made.
6. MAINTENANCE AND INSPECTION No. Part Part No. Q'ty Life Remarks 21 Pre-transfer charging wire cleaner FF5-3090-000 1 1,500,000 22 Pre-transfer charging assembly scraper FB3-7820-000 1 1,500,000 23 Upper fixing roller FB1-9885-000 1 24 Insulating bush (front/rear) FB1-9927-000 2 1,500,000 Replace 1,500,000 simultaneously.
6. MAINTENANCE AND INSPECTION III. SCHEDULED SERVICING Note: 1. As a rule, provide scheduled servicing every 250,000 copies. 2. Check the service record before setting out on a visit, and take parts if replacement is expected. No. Work Checks 1 Meet the person in charge. Check the general conditions. 2 Record the counter reading. Check faulty copies. 3 Make test copies. Check the following: a..Image density b..White background (for soiling) c..Character clarity d..Leading edge margin e..
6. MAINTENANCE AND INSPECTION No. 8 Work Checks Clean the fixing/delivery assembly: • Inlet guide • Oil receptacle • Thermistor • Separation claw (upper, lower) • Fixing roller (upper, lower) • Check the cleaning belt. 9 Clean the exposure assembly: • Blank exposure assembly scoop-up sheet • Pre-exposure assembly scoop-up sheet 10 Clean the filter: • Ozone filter • Dust-proofing fan filter 11 Check the waste toner case. 12 Provide scheduled servicing according to the number of copies made.
6. MAINTENANCE AND INSPECTION IV. SCHEDULED SERVICING CHART A. Copier Caution: Do not use solvents or oils other than those specified. Unit Externals Part Maintenance intervals Upon Every Every Every installa- 250,000 500,000 1,000,000 tion copies copies copies Copyboard glass Remarks Use alcohol. Ozone filter Dust-proofing fan filter Process cover Be sure no droplet Hopper upper cover of water remains.
6. MAINTENANCE AND INSPECTION Unit Charging assembly Maintenance intervals Upon Every Every Every installa- 200,000 500,000 1,000,000 tion copies copies copies Part Remarks ● Charging wire Primary charging assembly grid wire Use alcohol. Charging assembly Photosensitive drum Roller electrode assembly (pre-transfer charging assembly) Dispose of the waste toner, and clean. Photosensitive drum Put drum cleaning powder (CK0429) and alcohol on lint-free paper, and clean; then, dry wipe.
6. MAINTENANCE AND INSPECTION B. C.F.F. : Clean Item Installation ✕ : Oil ● : Replace minimum interval : Adjust : Check Remarks for copier Platen glass Figure 6-1, w white plate Figure 6-1, e paper sensor Dustproof glass Figure 6-1, r C.F.F. mirror Figure 6-1, t Optional shutter Figure 6-1, y side Note: Use the copier counter reading as guide, and carry out the works as needed. q we t r Figure 6-1 6-8 COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
APPENDIX A. B. C. D. E. F. G. H. I. GENERAL TIMING CHART ..................A-1 LIST OF SIGNALS/COMMANDS .........A-3 GENERAL CIRCUIT DIAGRAM............A-5 DC CONTROLLER PCB .......................A-7 CONTROL PANEL PCB......................A-57 LCD INVERTER PCB .........................A-62 CONTROL PANEL TRANSIT PCB .....A-63 LCD TRANSIT PCB ............................A-64 LAMP REGULATOR PCB ...................A-65 COPYRIGHT © 1996 CANON INC. J. K. L. M. N. O. HIGH-VOLTAGE TRANSFORMER PCB.............
Download Service Manual and Resetter Printer at http://printer1.blogspot.
Power switch ON 170°C 180°C 188°C 195°C(190°C) A.
Copy Start key ON 1 Fixing main heater (H1) 2 Drum motor (M1) 3 Scanner motor (M2) 4 Scanner home position sensor (Q5) 5 Scanner original leading edge sensor(Q4) 6 Scanner original leading edge 2 sensor (Q38) 7 Scanning lamp (LA1) 8 Scanner locking solenoid (SL18) 9 Pick-up motor(M16) SCFW SCRV SCFW SCFW SCRV SCFW SCRV copier + RDF-D1 + Stapler Sorter-E2 continuous copying LSTR upper front tray, A4, 2 originals, 2 copies, continuous Controlled to 200°C (195°C) Forward Reverse
SIGNALS AND COMMANDS 4KFBCD 4KFCD 4KPCD 4KPS A AC0ON AC1D ACBTP ACON B BDS BPS BTS CBCD CBOUT CBOP CCNNT CCNTD CFFST CFLE CLBSD CNTP COM COSET (DCBC) DDO DFWD DHRD DKON DKDOWN DMD DMFG DMFS DOSET DOTD DOWD DPISD DPSSD DRVS DSD1 DSD2 DSZ1 DSZ2 DSZ3 DSZ4 DUPCD DVLD ECDRER FDO FEDCD FILS PAPER DECK FEEDING ROLLER STOP signal PAPER DECK FEEDING ROLLER CLUTCH DRIVE signal PAPER DECK PICK-UP CLUTCH DRIVE signal PAPER DECK PICK-UP PAPER DETECTION signal PAPER JOGGING GUIDE MOTOR PHASE A DIRECT POWER SUPPLY signal
A-4 MIDDLE SIDE TRAY PICK-UP DETECTION signal MULTIFEEDER PICK-UP ROLLER DRIVE SOLENOID UP signal MIDDLE SIDE TRAY PICK-UP ROLLER DRIVE signal MIDDLE SIDE TRAY OPEN LED signal MIDDLE SIDE TRAY RELEASE signal MIDDLE SIDE TRAY OPEN signal MIDDLE SIDE TRAY PICK-UP ROLL RELEASING SOLENOID DRIVE signal MIDDLE SIDE TRAY LIFTER MOTOR DRIVE signal MAIN SWITCH ON signal MIDDLE SIDE TRAY LIFTER LOWER LIMIT DETECTION signal MULTIFEEDER OPEN DETECTION signal MULTIFEEDER PAPER WIDTH DETECTION signal MIDDLE SIDE TRAY LI
Download Service Manual and Resetter Printer at http://printer1.blogspot.com COPYRIGHT © 1996 CANON INC. CANON NP6085 REV.
APPENDIX N. LIST OF SPECIAL TOOLS No. Tool name Tool No. Shape Code 1 Door switch actuator TKN-0093 A 2 Speing scale (compression) CK-0054 B 3 Cleaning oil TKN-0464 A Application/remarks • Measuring strength of casette springs • Adjusting scanner drive cable tension TKN-0464 CLEANNING OIL HUILE DE NETTOYAGE CANON INC.
APPENDIX O. SOLVENTS AND OILS No. 1 Description Ethyl alcohol (Etanol) Isopropyl alcohol (Isopropanol) Use Composition Description Cleaning: e.g., glass, plastic, rubber parts; external covers C2H5O Cleaning: e.g., metal; oil or toner CH3COC2H5 • Do not bring near fire. • Procure locally. Lithium soap (mineral oil family) • CK-0427 (500 g/can) 2 MEK 3 Heat-resisting Lubricating; e.g., fixing grease drive assemblies (CHZ3)2 CHOH • Do not bring near open fire. • Procure localy.
Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT.1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV. CANON INC. Printed in Japan REVISION 1 (JULY 1996) [03595/31625/74427/71720] 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 146 Japan Download Service Manual and Resetter Printer at http://printer1.blogspot.
This publication is printed on 70% reprocessed paper. PRINTED IN JAPAN (IMPRIME AU JAPON) 0697AB0.6-3 Download Service Manual and Resetter Printer at http://printer1.blogspot.
